Armando Fox, of the UC Berkeley RAD lab, has put together about six hours of instructive Rails material that have been made available as a series of public webcasts (6 parts). Check it out:

http://webcast.berkeley.edu/event_details.php?webcastid=20854

I remember the RAD lab as my Dad's old stomping grounds. My cousin and I used to run around, trying not to break things, while my dad was working (likely stuffing punch cards into some room-sized computer).

Despite their history of making sufficiently destructive weapons, the RAD lab has always housed some pretty smart folks, doing very cool things. It's good to see that Rails is in their tool box these days.