What are the best club nights in Edinburgh?

My friends and I are heading down to Edinburgh this friday and would love to know what club nights are on? And possibly the best/recommended club nights? And good bars? Some of my friends are into R'n'B and some of us quite like the indie, electro stuff. We're students so a club where people are likewise would be good. Cheap drinks would be awesome but we're pretty much after a place with an ace vibe. Any help on this would be cl x