I just spoke with Todd Cochrane from http://www.blubrry.com/ I was unaware that they have a system that makes it easy to upload, and publish a podcast. It's been around for months! There is no dynmic aspects of it, it just takes the mp3 file you created and takes it and publishes it for you. Pretty cool, I'll have to look into it.
My presentation “Podcasting in plain english” is tomorrow at 10.