Just came across this site with some great behind-the-scenes F1 videos, and thought I'd share:
http://www.revs.tv/index.cfm
The Toyota, Ferrari, and Sauber F1 videos are especially cool, and showcase their cars, facilites, and the awsome technology involved up close (just type "toyota" etc. in their search box, or use the drop-down F1 menu). Tons of other cool stuff from different racing types/series there as well.