Open Source Windows - Free, Open-Source software for Windows XP and Vista
The OSSwin project: Open Source for Windows!
I saw from some other threads in the forum that people are not really aware of the free Open Source software that will run happily on a Windows PC. There is everything from audio converters to office software to games to web design applications.
In an era of recession, that might save some money
The obvious software that everybody will know is Firefox, but here are some other projects worth checking out...
Miro - free, open source internet tv and video player
Pidgin, the universal chat client
Audacity: Free Audio Editor and Recorder
FreeMind - free mind mapping software
Have a fun time downloading, legally!