Early Halo 3 Footage

I was just cruising around the Gamespot website and I came across a link that said something about some behind the scenes video from Bungie. I thought it'd some boring technical discussion on how they're pretty'ing up the next Halo game. Then, as I was watching it, I started getting interested in how they are reworking the Brutes, and then they show some pre-liminary animations of how the behave and they follow it up with early footage of the Master Chief taking them on. Just check out the video here and then curse yourself in anticipation of this because we probably won't see a release of this game until Fall of 2007.