Ah this is going to be harder then I thought.
I need to make images to somewhat entertain the listen while somewhat related to the subject.
Don't forget that you can just post the words they're speaking on the screen.
One of my new favorites is from Old Plague Puppy himself, Jeff King. It's included in
the September 11 Revisited movie. Believe it or not, the doofus says (sometime shortly after 27:00):
"When I first saw the collapses I knew they were not spontaneous."
Well, so did 300 million other Americans; we deduced instantly that the collapses of the towers had something to do with the 767s that had crashed into them shortly before.
There's also a clip of Kevin Ryan being interviewed where he notes, "I'm not the smartest guy in the world." One of the great understatements of the 9-11 movement. I think that was from the smorgasbord. James linked a speech by Judy Wood on the Keebler elves and how they relate to 9-11.
Has anybody ever posted video or audio of Fetzer's comments about how in the good old days the mob would have torn Bush to pieces? That's certainly terrific. Also, consider the ending of Loose Change V1, where Dylan calls for the passengers (i.e. the citizens) to take back the plane (the USA) from the hijackers (the Bush Administration).
Also, don't forget Spooked 9-11's experiments (no video or audio) and you may also get some benefit out of that Penn & Teller episode on the 9-11 Deniers--Jimmy Walker in his space cadet outfit is memorable. Hufschmid's definitely worth a look as well; his movie's out there. How about Rick the child prodigy from 9-11 Eyewitness? The latest version of that movie has the nukes going off in the basement of the WTC. Or, if you can stand it, a little bit of "Who Killed John O'Neill" with the John Nash-style diagram on the wall.
Have any of the no-planers managed to put together any clips? I'm sure Killtown or the Web Fairy have done something along those lines; they'd certainly be memorable. When looking for this stuff, you can probably follow Chuck Sheen's frequent advice and look at Universal Seed.
How about some stuff on Gypsy and her whistle-blowing, followed by some (tasteful) shots of her flag routine on the 4th of July?
Also, you might think about organizing the stuff by topic. For example, if you wanted to talk about paranoia among the 9-11 Deniers, you could use the clip from the Smorgasbord with Zwicker talking about "Of course they've infiltrated our movement", and Dylan talking in a brief interview about how he's sure he's on "a list" (another Sacred List!) somewhere. I'm sure there's plenty of other paranoid stuff out there (Hufschmid's graphic showing all the "poisoned" 9-11 Deniers, for example).