Tao is a pretty good club in Vegas. It's probably number 4 on my list. I've been here a couple times so far. Both times were pretty fun. It gets get crowded pretty quickly though. If you can I highly suggest trying to get onto a promoters guest list. I was pretty drunk when I went here, but thanks to my promoter it was free. The setup was pretty decent from what I remember. The wait at the bar took a little while, but it's all gravy. Drinks are average priced at around $17.
*The first time I went here, the security thought my ID pic wasn't really me so I had to tell them my full name, birthday and address. Good thing I still remembered all that information since I was chocolate wasted.