I'm very slow on customizing my environment. I can do things the hard way for months before I force myself to make a small tweak that makes life much easier. No wonder I used Visual Studio (and PSPad for that matter) with default "Courier New" font and didn't even know that Vista comes with a special monospace, ClearType fine-tuned font family called Consolas. You can download it for XP, too.
Hopefully this will make the long development hours ahead a little bit easier on my eyes.
You can find samples and download links for other popular "developer fonts" through this article.