We just purchased a new Canon Rebel T4i. Here are some videos that have helped me understand how the camera works (I'm a bit of a newbie!).
The functions of the new touchscreen feature on the T4i.
A video with a description of each item in the Canon T4i Menu System.
This is a simple and free DSLR photography course. It will give you the basics of lighting and taking high quality images.
A simple explanation in video form of the external buttons on a Canon Rebel T4i.
A simple overview of the Canon Rebel T4i.