In case you haven't seen it I tohought I'd point out a new SketchUp resource. Bob Babcock, Tim Killen and I have been asked by fine Woodworking to collaborate on Design. Click. Build. A blog to teach woodworkers some of the basics of computer aided design, specifically SketchUp. Bob and Tim bring a lot of experience to the table and I think you'll find the information they have to share useful.
Design. Click. Build.