At Tech Ed this year, the presenter at one of the Windows Presentation Foundation talks was raving about the new Consolas ClearType font was was recently developed for Visual Studio 2005. I have downloaded it and I must say it is the best fixed width developer font I have ever seen. Here is an example screen shot (although my screen shot really does not do it justice):
You can download the font for free here:
http://www.microsoft.com/downloads/details.aspx?familyid=22e69ae4-7e40-4807-8a86-b3d36fab68d3&displaylang=en
You have to make sure that your system has ClearType is turned on. The first question (”How do I turn it on?”) at this link will show you how:
http://www.microsoft.com/typography/ClearTypeFAQ.mspx