These are the units available in regular StarCraft. I'll post thos from BroodWars when i get .gifs. If you have any mail them to me,or get a hold of me through ICQ!

Larva are the most basic of the Zerg used to produce other units. They can morph themselves into any basic Zerg creature so long as you have the right structures.

The Drones are used to build all structures provided you have the other structures needed to build them.

The Overmind can't do all the work so the Overlords are their right hand Zerg.  Zerg are fed by the creep so the Overlords just help controll the brood.

Zerglings make up the basic unit of Zerg armies.  They are the initial attack.  They are so easy for a larva to make two come out of one egg!

Hydralisk are slightly more powerful than mariens and they can attack air and ground.  They are esential to any powerful Zerg army.

Mutalisks are the basic air unit of the Zerg.  With their bouncing attack they are very good at taking out tightly packed units.

The Guardians a.k.a. Crabs, are an extreamly good at ground attack seeing as thats all they can do.  They have no air defense so have your armor upgraded before ya get these.

The Queens although weak defensivly are very valuable  for their spawn broodlings and infest command center abilities.  The command center produces Infested Terrans which are also kamakazies.

Ultarlisks are like huge biological tanks used to take out heavy units or as a clean up crew for buildings after the units are gone.

Ahhh the Defiler, the plauge spreading burrowing(even without it reserched!) Zerg that can devoure his fellow zerg for nourishment. he is actually quite useful for infesting groups of mariens ready to attack the hive.  They have one other ability thats dark swarm. Those pesky wraiths picking on your zerglings? one dark swarm will fix them!  It gives cover for ground units untill they can burrow or run away.

The Scourge is a little kamakazie who slams his body into any air ship to destroy it! A.K.A. Carrier Killers for their effectiveness against carriers. at two to an egg and low resource cost what Zerg air swarm could be wihout them?

Idont have a pic for a terran if you have one please send one to me!

The infested terran can be a devistating weapon if used correctly.  The find their targets and blow themselves up with splash damage!

New units from BroodWars!

The Devouer is a overgrown more powerful Mutalisk that can only attack air.with more HP and a bigger punch they are worth the extra minerals to make. great with Guardians!.

The lurker is evolved from the hydralisk.  They are great at defense as they attack by stabbing spines up out of the ground into your enemy! Great for macking a choke point just that a choke point!  They can tear mariens apart!