My best friend is coming back to NYC after many months leading a Marine platoon in Iraq. Need a place/guestlist for 50 or so on Saturday 12/18. Ideally it has a lounge area for conversation AND dancing. Guests mostly in their 30's with no patience for hassles, waiting to get in, etc. Given the size of the crowd coming, I want a really good deal (no cover/open bar for some period/etc.) Any suggestions?