http://theopencd.sunsite.dk/
Check out this great CD. It collects some of the best open source projects for Windows (including OpenOffice, Mozilla, Blender, etc) and compiles them onto a downloadable .iso file. It has a great autoplay navigator and makes installs very easy. It's a great intro to open source for those friends of yours who aren't yet familiar with the concept. I found a couple of things that I hadn't heard of, and I thought that I was pretty familiar...