The free version of Google SketchUp for the Mac is out. SketchUp is a 3D drawing app. I'm not a Google fan. Actually I like very little of their stuff, and I think they're incredibly overrated. However, I have to admit that based on playing around for a little while, SketchUp is really cool. The interface is very intuitive. Intuitive enough that you can figure it out by just playing around, you don't even need a manual. Anyway, check it out.