Like everyone else said, hit the Borgata. I live by Atlantic City and I've never been in it yet, but everyone else I know loves it. I usually go to the Tropicana or Taj Mahal.
If you wanna hit the clubs, there's one in the Taj called the Casbah. Nice place but a bit pricey. There's another club in AC called Studio 6. You don't wanna miss that one.
If ya wanna know any other places, hit me up and I'll try to help ya.