I will be teaching a class on Windows Presentation Foundation at UCSD Extensions starting on September 18. The thing that is interesting about this class is it is on Beta technology. In fact UCSD has classes on all of the new .NET 3.0 technologies (Windows Presentation Foundation, Windows Communication Foundation and Windows Workflow Foundation). I have added links below for my class plus the other classes.
Windows Presentation Foundation Class
Windows Workflow Foundation Class
Windows Communication Foundation