There is a great podcast called "Sticks & String" by David Reidy, an Aussie knitting bloke. This can be found at http://sticksandstring.wordpress.com/
Dave has done only 6 shows to date and all are pleasant to listen you. He has a definite male energy about his programming which I enjoy. In addition, he is doing a great job raising the profile of men knitters.
To be honest, I'd never heard a podcast before but now I'm very keen to hear more. He has links to other podcasts about knitting, a couple of which are by guys.