Check this out. It's a 1 hour, 41 minute talk with Ed Catmull, Brad Bird, Alvy Ray Smity and Andrew Stanton about the history of Pixar, and the computer innovations required to allow creative people to use the computer to start making film. Pretty great stuff.
Also, if you weren't already aware, Glenn Vilppu posted up a whole bunch of his life drawing notes on AWN.com. Check it out here. Many of them are from his drawing manual and his sketching on location manual. He's also put together a few new books: Drawing the Head, Figure Drawing Step-By-Step, Drawing Drapery, and Hands and Feet.