I'm doing a free, 60-minute webcast for my O'Reilly book, The Google SketchUp Cookbook, this Thursday May 14, at 1 PM EST. The focus will be mostly on presentation: using scenes, styles, and layers. I don't know how many more folks can sign up, but here's the URL:
If you miss it, you should be able to access it for a while on the webcast archive (scroll down on that page). I'm not sure how long it'll stay there. Check out the other webcasts on this page - there's some great stuff!
Anyone can design anything in 3D! www.3dvinci.net