After contemplating getting one for awhile, my wife bought me an iPod for my b-day. 30G with video - sweeeet. I've been using iTunes for awhile so there's already a bunch of music on it, but never really paid attention to podcasts until now. I did know about the Lens Work podcasts with Brooks Jensen (which I recommend) and found Photoshop TV with Scott Kelby so I'm pretty happy with that. I'm also a big NPR fan so I subscribed to Driveway Moments too.
Any other favorites out there - photo related or not?