Here is a link for the rendering program I have been playing with. For the Mac it looks like you have to have OS X and its a beta version. I have had a few problems with it. Hopefully, the will fix them up soon.
[removed old link - 12/30/04]
Updated 12/30/04: Blender has had its own website for awhile now. I just started looking at the latest version again (v2.36). blender3d.org
