I grew up in NYC.
Go and do it.
Cab, train, bus is the way to travel. Car will be more hassle then its worth.
Check out any of the tourist attractions. Museums, Planetarium, catch a show on Broadway. South Street seaport is one of my Fav hangouts. Time square is a cool place now. The Intrepid is awesome also.
Just bring lots of $! Everything cost and nothing is cheap!
