The nice thing about feral is that the usual build is pretty straight forward, with only a few talents that differ depending if you PvP or Tank or not.

Balance:
Nature's Grasp: Its the only Balance Talent a feral would take, usually seen as a PvP talent that helps you escape/run flags. It's also good enough for PvE/Grinding that for 1 point you'll take it. Forget about imp.Nature's grasp, that was affordable in our old talent trees but not worth it anymore.


Resto:
Furor: You're taking this instead of imp.MotW. In pvp its a critical *must*, specially for cat form and "power-shifting" (which is shifting repeatedly to get energy back after having spent it). In PvE it's a must for bear form, it allows you to shift=>Charge, which is a staple of off-tanking/emergency tanking.

Naturalist: You're taking this over Nature's focus. if you REALLY want to off-heal you could gimp your feral tree, still keep Mangle, and get Nature's Focus, but it's not worth it if you ask me. If you're getting hit while healing you have Barkskin, or you could have used Bash or Cyclone (at 70), to avoid getting hit in the first place.

Nat.Shapeshifter: A PvP talent, excellent for pvp, only moderatly useful in PvE, except for power-shifting. Depends on your playstyle, i've always had it, but I shift alot. ***

Omen of Clarity: This is our Ace up the Sleeve. There are HUGE tricks you can pull of with this. Either a free Shreds when it procs (imagine Pounce, which is like cheap shot, then mangle for the shred debuff, then shred; all of which can be done before pounce wears off, now imagine OOC proccing somewhere in those 3 moves +auto attacks, you just got an extra free shred, and effectively obliterated that caster). The other big use is to get off free heals spells, so you can be in cat form, dps'ing, it procs, you shift out and hit Tranquility, you just cast a 2000ish mana spell for free. You can even cast barkskin to avoid being interrupted during hurricane/tranquility and it wont eat up your OOC proc, so Hurricane/Tranquility is still free.


Feral:
Ferocity: over feral agression. Ferocity is a must, Agression is only taken by extreme PvE Cat druids who want max DPS at the cost of better talents. My advice, dont take Agression.

Thick Hide: You mentionned Tanking? You're taking this. ***

Brutal Impact: Mostly a PvP Talent where stun lenth is gold. It allows you to Regrowth+Rejuv+shift back to bear, without it you'll only have time for regrowth+shiftback or Regrowth+Rejuv but you wont shift back in time before getting hit.

Feral Instinct: You're probably taking this as well, but its not a critical must, specially not at low levs. More agro for bear form, better stealth for Cat. Bears already have great agro so its additional agro is more usefull in raids/boss fights where you just cant afford to take a chance losing agro. The stealth bonus is just icing if you ask me. ***

Feral Swiftness: Cat form speed? yes plz. More dodge in both cat and bear (used to only be for cat), awesome. Great for grinding, nice for tanking, god damn essential for pvp (cat speed).

Feral Charge: Take this asap. One of our main strongpoints for tanking/off-tanking is our ability to charge while being knocked-back (yo-yo Bear), or catching up quickly to loose mobs; all without having to stance-dance like a warrior. And of course it's also pvp gold.

Sharpened claws: Yes, no matter what build, you're taking this and primal fury.

Shredding attacks: The rage reduction to lacerate is ok, but we usually dont have rage issues. It's main utility is to make Shred actually usable. Without it, Shred (our equiv of backstab), is useless at 60 energy. But at 42 energy (2/2 SA), it's better DPS then even Mangle (once mangle debuff is applied). Problem: Shred requires you are beind the target, so it's a great Raid talent, decent for PvP, but not much use for grinding.

Predatory Strikes: Yes, mainly to unlock Heart of the Wild (ie: the best 5 point talent in the game.)

Feral Faerie Fire: For 1point you are now able to pull from range while in forms. Cost no rage/energy to use. Can be spammed each 6 secs for extra agro (kinda moot now that we have mangle/lacerate). It's a must, take it.

Nurturing Instinct: yuck, it got nerfed, barely useful now. But you mentionned wanting to be able to heal, but it's only good for when you're forced to off-heal while in feral gear, which sucks to begin with. I'd pass unless you find yourself off-healing alot.

Heart of the Wild: The biggest reason to go feral to begin with. Take ASAP.

Survival of the fittest: 3% to all sats is ok, but the real reason to get it is to be able to bring down your chances of being crit by 3%, which can effectively make you crit-immune in PvE. A Staple Tanking Talent, and a strong PvP talent. ***

Primal Tenacity: More of a PvP talent, I dont really like it cuz I never know how useful it has been. It's neat seeing everyone in an AoE get feared or stunned except for you, but it's not a must cuz you cant count on it. ***

Leader of the Pack: Yes please, but you know this already, dont you Mr.Hunter.

Improved LotP:  Great for Grinding, nice for PvE 5mans/raids. It got nerfed from 6% to 4% and no longer crit heals. Not a must, but fits into almost all feral builds.

Predatory Instincts: DPS boost, and chance to avoid AoE's. Take it.  Avoiding Boss AoE's is gold, seems more effective then Primal Tenacity

Mangle: without this, you're not really feral. Take it. Bear mangle is getting a bit of DPS back form the nerf. In unlimited rage scenarios (boss/multiple-mob-tanking) you're using it every 6 secs, with maul's and lacerate in between. In Cat form is replaces Claw. thats right, you'll never use claw again with mangle. For Raid Cat DPS you apply mangle (for the 30% bleed/shred debuff), then you shred (twice), then you Rip (or DoT finisher).

All the *** marked talents are basically interchagable, these are the talents you choose between depending on PvE / tanking / Grinding needs.

You will have to decide if you want Furor as your first 5 points and shoot for OOC, or Nature's grasp, or if you'll just go straight for 41pts in feral for mangle. I suggest Getting 5/5 furor first, then 41 in feral up to mangle, then work up to OOC. And for 1 point Nature's grasp is so easy to get and so usefull that Id prolly get it right after 5/5 furor.


My spec (keep in mind I pvp, or used to):
http://www.worldofwarcraft.com/info/classes/druid/talents.html?01000000000000000000050323213232210530125105503001000000000000

For gear you want 3 sets at least:
1 Heal set, where you can even go as far as using some cloth pces. you want Int and +healing, our mana regen sucks, but HotW gives you 20% more int (mana) so ferals are way better off maxing Int and +healing then going for mana/per 5sec or spirit.

1 Tank set, stat importance goes pretty much as follow:
Armor
Stam
Agi (lesser extent dodge)
Str (lesser extent cit, or Attack Power)
Resiliance (you dont need much, since Survival of the fittest makes you nearly crit-immune all by itself)

Armor:  any item with a higher then usual armor value is gold. In the next patch, the armor value will apprear in green if any Item points are allocated to armor, which means its tank gear! Rings and Trinkets with armor are priceless. Smoking Heart of the mountain, Mark of Tyranny. Smoking heart can only be made by enchanters, but you can then ditch enchanting and STILL use it, all serious bear tanks do this. Mark of tyranny is one of the 3 items you get off that UBRS quest that lets you choose between the 2 2% crit trinkets (spell crit, melee crit) and Mark. Take Mark of tyranny and go lol at druids who did'nt realize 10 levels and 2 years later they missed out on what is still the best tank trinket in the game (well untill like SepentShrine i think).

I'll come back and post the link to the post that details all the high armor, quested, TBS tank gear. In the meantime, you'll end up using alot of Rogue gear, just cuz our itemization sucks pre-TBC.

Oh and go buy a Warden's Staff off the AH for 150g (max), you'll use it for tanking from 40'ish to 70 (where you'll buy an other 550 armor staff or grind to exalted with Cenarion Expedion for an Armor Mace).

1 DPS set:
1 pt in STR =2attack power (2.4 once you have Heart of the wild) So STR>Att pwr on items once you get HotW.
1 Agi = 1 att pwr. 20 agi =1% crit. You want a good mix of STR and AGI, 1 AGI is worth about 0.9 STR in overall DPS calculations.
The difference between our DPS gear and rogue gear is we want STR over Attack pwr, and we want AGI over raw crit value, we get more out of both of those stats, same goes for gems.

1 Hybrid Set:
This is where it gets tricky, your DPS set is fine if you are just grinding easy mobs. But in 5mans, PvP, and raids where you're not pigeonholed, you want a mix of DPS, Tank, Int. The good part is gear with all stats (our dungeon sets, and pvp sets) has more stats then more focused gear with only INT or DPS. Depending on how much off healing or how much off tanking you'll do, it'll be up to you to mix enough of those stats into your hybrid gear. Keep in mind you want around 5k mana at 70 at the very least to be able to throw around emergency off heals and shift enough to wear the hybrid badge. Your hybrid set will usually be a mix of the best of you tank/DPS items.


With the typical 1-46-14 build (1-49-11 for those who dont pvp and dont take Nat.Shapeshift) you'll be able to main tank and dps fine, no need to respec. In your full heal gear you'll be a good off-healer, but you wont be able to Main heal difficult 5mans unless you have an off healer or are over-geared for the instance. Dont sell yourself short, you can heal fine, but it's at a shadow-priest'ish level.

Edit: Shredding attacks reduces shred to 42 not 48. Even better.