Well I watched the webcast last night, even though I don't own a Canon 600D and found it quite interesting.
It was basically a guide to the 600D, with the odd photography tip thrown in, and for most of the explanation of the menu, a guide to the Canon menu system. I occasionally have to handle Canon cameras, so as I say, found it interesting.
It got a bit manic at the end as the chap quickly changed the settings on the camera to demonstrate settings for different types of scene/situation, but also to show how quickly the settings could be changed.
If you have a Nikon camera, I would say it doesn't have to be the D5100, and are not too hot on the menu system,

then this is worth a look tonight at 5pm.
I should have put this in the Basics section in hindsight, but hopefully someone will see this and get some use from it.