see my answer to the one who is going to the french riviera, and do the same. But i am afraid in rouen and le havre you will not club a lot. Well these are not best places to club..
Not to see him... to get him out and reopen the sound factory =). Muzikchick, i think there is the deposition in a past topic, you'll find it easily, the title was about the closing of sound factory and JP, it is a topic with maybe 6 pages.
I think on jay street in brooklyn heights there may be a club i was told, but i did not have the time to test it, nor to see it, then i can not certify the info.
thanks for answers i don't know NYC yet but i am coming to resolve it. edit : i mean, i would like to know the best night clubs and parties to go, and if prices are paid on door or if i have to get to a guest list or something.