i belong to new york sports club. It is one of thr major gym chains here, along with crunch ..synergy also has a bunch.
There are very nice gyms such as equinox, reebok, and chelsea piers but they cost thousands of dollars a year. If you are just going to check one or 2 out for a workout...try one of these! I bet they charge ya 25 bucks at least though.
There are some more hardcore lifting gyms as well...
any other questions, ask me!