just wanted to throw a few ideas out there for ya.
what about live streaming your podcast with a box at the bottom showing a feed of what people are saying as they watch the show and have the chatroom imbedded in the show.
the reason i thought it would be cool was because it would show the people who just watch the podcast that there is a fairly cool network of people on the forums and mumble.
I'm not sure if he still does it but a tech reviewer called Chris Pirillo used to do it years ago and it seemed to work well for him to show the community in his network.