Well lovinE here are a few spots I like:
Open Air 121 Saint Marks Place-DJ's and Barstaff are real nice. Mixed bag with the crowd though some nights cool other nights Eruo-snobs other nights NYU frat party
Baktun 418 west 14th -great DJ's lots of dancing, crowd knows it's music a bit loud if you are looking for the mellow vibe
Halcyon-227 Smith St., Brooklyn-nutty mix of DJ's and good selection at bar
As we get closer to the weekend stuff should be popping up that will be more detailed and specific
I am not too big on the rave tip so that info will have to come from someone else.
Stay tuned to the NY roll call
Is there anything specific you are looking for? (type of music,vibe,crowd,location)