I just got off a customer call where we talked about them delivering in-house training on the new 3.0 Framework stuff. Being that im the n00b at MS, I didn't know about .NET University.
This site rocks! If you want to teach or learn about these new technologies, you aboslutely have to check out this site. I'm a teacher at heart and one of the things that is the best way to retain knowlege is to teach that knowledge to someone else. Seriously. Give it a try and you'll see what I mean.
PLUS ms will help you formalize the training and set up a registration site for you so you just have to deliver the content (and we'll even help with that too)!