Manifesto Radio

As if having my own website, writing a self-centered blog, and constantly pimping my one-man band wasn't enough, I have pretty much decided that I need my own radio show as well. "Podcasting" (broadcasting via the internet, with capability of feeding the show to an mp3 player) has become the new rage and I want in! I have been doing some research on how to get the podcast up and rolling, but I don't really know what kind of weekly radio show I want to produce - music, politics, rantings. Any suggestions? I hope to have something rolling within the next week or so.