Spent a super fun evening at Tao Nightclub with some really good friends. Their music is great-lots of hiphop and not too much house music. It gets crowded but we had our own table and roped off area so we didn't mind too much the throngs of people everywhere.
I know a lot of people complain about the crowds in Vegas nightclubs but if there isn't a crowd then the place must suck. TAO does not suck :) Go there.