The Security Catalyst podcast

I recommend Michael Santarcangelo's "Security Catalyst" podcasts, which can be subscribed to at no charge via iTunes or Yahoo Podcasts. He's got additional information and links related to the shows at the Security Catalyst website.

Michael, who I met a few years back through a consulting engagement that was a "death-march project," is a sharp, witty, and well-spoken advocate of and educator for good computer security.