If you subscribe to the MSDN Newsletter, you may have already seen this. But, I wanted to let you know about it just in case.
Microsoft has published a series of introductory presentations about ASP.NET MVC entitled “ASP.NET MVC for the Rest of Us”. I just watched the first video (of three). It gave a good overview of the similarities and differences between traditional ASP.NET WebForms and ASP.NET MVC.
If you’re doing web development, I recommend watching the videos. They’re only about 30 minutes each. And, the ground they cover is an important foundation. Even if you’re already doing ASP.NET MVC, you’ll probably gain something from these videos.