Well, I could give you a million suggestions, but it would help if you tell me what kinds of things you like. What kinds of restaurants would you want to check out while you're here? Do you want to visit museums? Go clubbing? If you want to go clubbing, what type of crowd/music would you enjoy? Will you be staying downtown?
You might want to check out
www.metromix.com to get some information, and
www.chireader.com has great restaurant reviews.
But really, let me know a little bit about what you want to do when you're here and I'll try to make some good suggestions for you!