If you want a good book, too, take a peek at the Park Tools Big Blue Book by C. Calvin Jones. I just got it a couple weeks ago and am loving it. I do best with pictures and there are plenty in the BBB.

The Park Tools website has links to LBS's that have classes. Everything from 2 hr intros to 1 week intense. (of course, they're classes that use the BBB and Park Tools and have the Park stamp-of-approval, but it'll give you a place to start searching)

www.parktool.com