Code syntex highlight http://code.google.com/p/qlcolorcode/

Now that is just awesome. Thank you!

beware though. might not work after latest XCode installation

I don't have XCode installed as of yet. I'm on Mountain Lion and I'm waiting for both the official release of ML and XCode on the App Store. Will XCode for ML still interfere with this plugin or is there any other plugin with similar functionality?

well, i don't really know.