This is more of a placeholder right now...I really want to do this episode, and it's one of the most-requested topics, but I want to take the time to do it right.
Feel free to go ahead and recommend videos on both sides. I figure Loose Change is a good one to use as a basis for debunking. I also have the BBC Horizon episode Fall of the World Trade Center, although it's a low-resolution Google Video version and I'd like to find a DVD-quality version.
I have various AP clips of the event, but I'd like to get clips of Tower 7 from the damaged side (which the conspiracy nuts never show) and some good videos of actual skyscraper implosions for comparison.