Hi Gimli! Thanks for adding me! =D
Anyway, if you like nightlife and clubbing, Sao Paulo is the place for you. We have alll kinds of clubs, and bars, and anything you imagine!!! And all sorts of prices too, what is good. Although I'm living in the USA now, I still can give you some tips... I think you will enjoy the alternative places at Rua (St.) Augusta, and maybe the fancier clubs at Vila Olimpia (a neighborhood full of clubs). What kind of nightlife you're looking for?