If you're running Visual Studio 2005 on Windows XP, you probably aren't too satisfied with the default font. Courier New isn't exactly the easiest font on the eyes. However, options are limited due to the need for mono-spacing.

Microsoft made up for this by distributing Consolas with Vista, so I recommend switching to it. If you're on XP, you have a little bit of work to do.

First, make sure your ClearType font-smoothing is turned on. You can use the ClearType tuner here. Then, download and run Consolas Font Pack for Microsoft Visual Studio 2005.