I have created a set of WAV files that will make up my examples and demos that folks who are attending might want to download if they plan to try to follow along during the presentation. The link is here (34-MBs .zip file).
I also have posted a copy of my Audacity 101 DAU eLearning 2008 workshop slides in PDF format, and a link to a Blip.TV movie that includes the screencasts that are embedded in the presentation. Unfortunately the movie is not sync'd with audio so you have to work your way through them without narration.
NOTE: I will be doing my demos at PME 2008 using the Audacity v1.3.5 (beta) release.