So, I ordered some a USB headphone/microphone set yesterday (with my Amazon gift certificate) and very soon yours truly will be podcasting right from his iBook G4! I will be using Apple's GarageBand to do so. I'm sure the first podcasts will be fairly amaturish, but I am really looking forward to trying this out! I practiced in the car all the way home today.
As soon as it's up and running, I will upload it to iTunes where you can subscribe to it (either Mac or PC --- you just need to download the latest version of iTunes from www.apple.com/iTunes). That way, you can hear my malifluous voice every week, ranting about anything that happens to strike my fancy.
I'll keep you posted!
PS - If you have any experience in this, let me know --- any advice will be useful! :)