Sorry about the noise in the audio. The wireless mics were acting up.
Also available: slides from the presentation and a list of links to everything mentioned.
Note: This talk is an hour long. I will split it up into shorter pieces and make those available "soon".
iPod-compatible video. (Right-click to download.)
Listen to the audio. (Right-click to download.)
[Update: Some technical notes on the not-so-straightforward recording/editing process are here.]