I am not sure if giving a book a plug or not is OK so please delete if inapropriate mods.
As a new user of the Canon 7D there is a hell of lot for me to learn and tonight I thought I would look at video. Well darned if I could sort out all the focus and frame rates etc. So I pulled out a book I bought that came with two DVD's one exclusively on the 7D. I scrolled through to the "Live view/Video" section to watch and I have to say there is no way I would have figured how out how to set up for video from the owners manual ever. The video showed me all the bits I was getting wrong and a ton more stuff I had never even thought of in a few minutes and I sat there with my camera in front of me trying it all out and pausing the DVD as I went. I am going to do all the rest of the DVD course now on normal camera use, before going out to practice shoot again. this video guide is so good I can only benefit from it. I am also going to buy the 7D guide book from the same publisher.
Any way it is the "Magic Lantern Guides Canon EOS 7D Multimedia Workshop" and the one I have just ordered is the "Canon EOS 7D Magic Lantern Guide". You can get them from one of the site advertisers too which is a good thing.
Hope this helps any of you who are new to DSLR's and the7D.
Cheers all - JB