Yesterday (May 31st) I completed a Macromedia Breeze Presenter class through the Professional Development Department at my school (Milwaukee Area Technical College).
Breeze Presenter is a tool that you use inside of PowerPoint to convent PowerPoint presentations into flash. Audio narration can be added along with the capability to create an interactive quiz as well as incorporating other media such as .avi (movie) files.
I found this software to be very interesting and easy to use. I like the fact that I can create a quiz within the presentation that can be scored (or not scored) and the results will be posted to Blackboard. (Blackboard is the course content system that we use). It was easy to record audio to each slide as will as edit the audio if necessary.
During the class, I compared using Breeze versus podcasting a lecture. Breeze might be less time-consuming to use to produce a presention in the long run. But I like the "live" interactivity that podcasting presents.
Here is a lecture that I produced using Breeze Presenter Wigs: An Introduction.