Here's a free three-dimensional drawing program. No kidding. Unlike most 3D drawing programs, SketchUp is drawing-based, and apparently easy to learn. And you can download it for free.
from Google. I'm gobsmacked. Thanks to Anthony Zierhut
for blogging this, or I'd never have found out about it. One of the great things about RSS feeds from your favorite bloggers - you find out good stuff like this, as opposed to the mechanical news alert which sends you information about 'prize drawings' (for raffles!) and 'contemporary artists' (singer/songwriters!)