I listen to a podcast on Project Management called: Controlling Chaos
They have a pretty good tendency toward agility: they did some casts about scrum, agile project management, extreme project management.
The last two podcast are an interview with Doug De Carlo: they talk about his eXtreme Project Management book.
They are good podcast at least as I use to rate them: around 30 minutes (the time I send in the car going back and forth to my office), decent sound quality (important when you are in a car), good topics but not to ‘heavy’ (at least for me! 🙂 ).