The music files on iTunes are another format that won't play on standard MP3 players, as I learned to my dismay - I have a Creative MP3 player, and it doesn't have an iTunes driver (or Mac driver for that matter) and I can't play music I've downloaded from iTunes on it - very annoying!
However fortunately as far as I can see, mp3 seems to be the standard podcast format. Just in case anyone doesn't know - on the pages where you see a link like "HERE (linked) is today's podcast..." you can right-click and download the file to your computer, from where you can listen to it anytime you want, move it to your Mp3 player etc. I have a folder I fill with podcasts to listen to while I paint.
http://tarottoday.blogspot.com - Tarot Today browse the archives to find earlier podcasts if you want to hear them in order.
http://www.deos-shadow.com - Deo's Shadow looks pretty good... LARGE files take a while to download - its a full radio show, various pagan topics incl. Tarot.