I'll leave it up to the paint pros as to whether you should wax it, but if you wash it, definitely stay away from anything harsh like dish soap. Go buy a good quality car wash, like Mother's or Meguiar's.
As for wax, I HIGHLY recommend Eagle One Wet or Meguiar's NXT. Neither is super abrasive, so you get a really nice shine without a lot of swirls. They also go on and come off really easily.