Have you visited Blog Talk Radio? It is a new citizen radio network which streams via the internet. Anyone can host a radio show - and it is free. The topics are varied and so is the quality. But, it is a fun time. Most shows also host a live chat room where you can chat with other listerners.
The Department of Defense has a radio broadcast at http://www.blogtalkradio.com/stations/PentagonRadioNetwork/bloggersroundtable
Heading Right Radio Channel reruns right side political shows and has links to those shows at http://www.blogtalkradio.com/channels/HeadingRightRadio