I've been in the unfortunate position of recently having to take some pretty long Amtraks trips. One bright side has been that it's given me the opportunity to check out a lot of podcasts on various subjects:
These are a few devoted strictly to pro-wrestling:
Pro Wrestling Torch Livecast:
A solid basic round up of recent action; plus, they take phone calls. It airs a new show almost every day.
Art of Wrestling
An interview show hosted by pro-wrestler Colt Cabana. The interview with Festus is great. It's hard to believe he's the same guy.
I Want Wrestling
An interview show hosted by former WWE writer Dave Lagana. I highly recommend the interview with MVP, lots of in-depth stuff about his background, including his jail stint and his friendship with Chris Benoit. He's a really articulate guy.