Adam Carolla
http://www.adamcarolla.com/ACPBlog/ has a bunch of great podcasts if you like him, an interview style podcast, his Car cast (auto related) and a few other listed along the right side of the page. He's got a great wit.
This american life from NPR is good too, pick it up from Itunes.
Check out Itunes for a ton of cool and free Podcasts - no subscription required.
I feel your pain cutting your satellite radio, I'm a Sirius subscriber in my eighth year and couldn't do without it - I drive an hour to work each way and listen most all of the day through ear buds. I'd dump HBO/Cinemax from the satellite TV before the radio.
I just can't can't go back to commercials and the same old garbage they cram down your throat on regular radio. "Hey it's another wacky morning zoo, back right after the same ozzy tune and this 5 minute block of commercials... asleep
Satellite radio is like crack as far as i'm concerned, so superior to anything else it's tough to switch back.
Good Luck.