Framing and Composition from Videopia on Vimeo.

I know that Steve has already done a fantastic episode on this topic, and I posted a video that covered a few of these topics just a few days ago, but this summarizes the topic nicely and shows some great real world examples that really help push the basics of framing and composition home. 

Videopia on Vimeo (where I got this great video), regularly posts great tutorials of their own, so check them out, they have some good advice.