Scott Hanselman has put together a new video you might find useful if you’re new to Windows 8. It’s about 25 minutes but moves along pretty quickly — he also does a nice job of highlighting the differences between Windows 8 and Windows 7. If you’re looking for a condensed version, I’ve also included a link to an earlier video that’s about 3 minutes long.
And here’s a link to the short one, “How to use Windows 8 in 3 minutes“.