If you’re in the market for a good gtk+ 2.x theme, check out Clearlooks. It’s one of the contenders for the new default GNOME theme, and rightly so. I’ve used it for a few days now and I have to say I’m thoroughly pleased. It’s easy on the eyes and high on the usability scales, but also unremarkable enough that I don’t forsee it getting old anytime soon – in short, one of the best gtk+ themes so far. Give it a spin.