Being a large energetic dog they need regular exercise have you got the time on your hands to exercise them at least twice a day for at least 30 minutes, Dogs need to go potty too yo know!! A german shepherd needs grooming too especialy if its one of the long haired types but the shorter haired needs grooming too!
have you ever met a GSD, try to meet various breeders and owners, see their dogs talk to them, do your homework about the breed. so you are still interested???
Do you want a puppy or is an older dog suitable for you?? As you are probably aware of a puppy just like a baby needs lots of time, theres time spent potty training and remember if you work long hours and are not able to get home during the day and if you have your puppy crated long hours its not going to be very happy. Would you liked to be crated for long hours?? then maybe an older dog would suit you better if you are away from home during long hours there are so many older rescue dogs looking for a home! Puppys dont come cheap too, you have just broken your bank balance in purchasing it, have you taken into consideration about the innoculations puppies need to help them make that healthy start in life?? Puppies need training obedience training. training begins in puppyhood have you got the free time on your hands to spend with the puppy training it and going to training schools??
Are you considering a male or a female? I have owned both dogs and bitches and theres very little difference between them. The only main difference is that a bitch will come into season twice a year and to some people it can be messy. Do you plan to show or breed then maybe the bitch is for you. I would always recommend a bitch to have one litter of pups in her life and no more than one. I have came accross to many bitches that have been spayed and has caused health problems later. A dog tends to be more protective over the home whereas bitches tend to have a more placid nature. Two male dogs in general never get on whereas 2 bitches will be happy to share their home. A dog will tend to need a firmer hand and firmer training as they tend to think thereselves being more dominent, but generaly the choice between dog and bitch depends on the indivual although there is very little difference when regarding temperment.