All the basic stuff I use for gym climbing. I do have a couple ropes but my gym provides ropes for lead and top rope climbing so I prefer to use theirs to extend to life of my own.
Friction Labs chalk is damn expensive, but I can really feel the difference. It's a mild advantage, and for most it's probably not worth the money, but for my sweaty mitts I love it. I think I actually use less too so maybe it evens out a bit.