To edit your files in real-time using TextMate, you first need to set up your computer to access your theme files.
(For those of us not lucky enough to have a Mac, check out E text Editor, which lets you use TextMate bundles and many of TextMate's features on Windows.) TextMate is a popular text editor for OSX, which includes excellent code highlighting, and a bunch of useful features that you can read about on their site at
