Yet a few more additions. Inkscape, Paint.NET, UVMapper, Molebox, SubtitlesK5ky, Tattoo, AC3D, MarbleCLAY. The Dogwaffle link now points to the free version page instead of the commercial version. Moved a few things around and clarified some descriptions, renamed the thread. My edit time has now expired, so no more changes unless something really cool pops up and is appropriate for it.

I also added a small handful of these to the freetools section of the Wiki.