Yes. Do get a antistatic wrist band. I would rather pay a couple of bucks not to kill some 200 dollar piece hardware or something. I'm sure you can get it cheaper somewheres else to.
I put my whole rig together on the short stack carpet without any form of antistatic and everything runs perfectly so I don't think it's that important at least.
have you guys ever had any problems with keys/mouse? because my keys/mouse are pretty cheap and i was wondering if i would have any problems with them.