Podcasting, when you want talk radio without the radio

Our genius comrades over at Engadget have an amazing feature on how to outfit your iPod for Podcasting. Podcasts are basically talk radio shows you can download to your iPod for future listening. There's a TiVo like feature that allows the software to automatically download the shows as they reoccur as well. There are only a few different Podcases out there right now that can be delivered in such a way, but my guess is that everyone that is putting their talk radio shows through streaming media would easily be able to add this type of format as well. Of course I'm not a gadget guy that's just my guess.