My sensei introduced me to this wonderful judo video available online. It's called "The Essence of Judo" and features one of the masters, Kyuzo Mifune. Some have considered him second only to Jigoro Kano, the founder of judo. The video is just over an hour long and completely in Japanese, but you don't have to understand the narration to appreciate the level of skill displayed. Here's the video in it's entirety: