I would have to say an all around safe neighborhood would probably be Dunwoody, but you will be paying an arm and a leg to live there, even the apartments are expensive, but i guess thats what you get for safety. but you also have Roswell, Gwenette, Alpharetta, though not as good as Dunwoody, you will probably find it cheaper with standard safety. As far as partying (the good life, you can go almost anywhere in Metro Atlanta and find something you like. The bad spots I would say are west Atlanta (within and a little outside the I-285 circle)and southeast Atlanta (within the I-285 circle). If you are new to the area, I would suggest going to "5 Points" for a start, its really fun.