I'll be teaching a workshop at Heartwood this spring - it is my introductory course on SketchUp. The class with focus on a timber frame - but everything we do is skill building and applicable to other uses - furniture, architecture, etc.
We tune the class and the speed at which we progress through the software based on the skills of everyone who takes the course.
Some more information here:http://www.heartwoodschool.com/introsketchup.html
Registration and information on all the other course offered at Heartwood is here:http://www.heartwoodschool.com/coursefr.html
If you've ever wanted to model a frame, furniture, or get a handle on how to get started with architectural modeling - this is great class. We focus on core modeling skills you so have a solid foundation to progress.