Re: Need good video clips for a talk...
Some of the footage from Josette Normandeau's visit to Iwama in her aikido episode of Deadly Arts might be nice. There is one segment that shows Saito Sensei doing a jo kata and some other good weapons practice footage. There are also some nice shots of Yamada Sensei in the same episode. Some of those clips were also used in a National Geographic episode on martial arts which you can find on YouTube, but the YouTube bit is grainy.