I spent many an hour in there during Fleet Week 2004-top place!
Empire State Building at night-time is good-free or discounted entry if you show your ID Card.
You've got to go and have scran in Hooters at least once-it's fantastic and just goes to show that the yanks can get something right if they apply themselves
Also, don't forget to get in touch with this crowd-they are EXTREMELY helpful and cannot do enough to make your stay more enjoyable. A polite email before you go can reap massive dividends for you as I found out-free tickets to a Broadway show for a start!
Thanks for all the advice. All good stuff. Slightly curious about the times square "dangerous at times" comment though.... What's the crack with using mod90 as id? I've heard both good and bad reports?