Yeah, Adam Curry is also the jerk running Mevio (formerly Podshow) cheating people in his network out of their content, stealing content from people not in his network, and generally being douchey.
If you want real liberty oriented shows for LRN, go get Jimmy Doane. Hilarious and informative, always liberty oriented. Also, Libertarian Dime runs a tight ship with regular postings, though generally liberty-oriented, host Shane Brady does happen to support courts and guns deciding what is and is not true (I'm doing my best to show him why he's wrong). Cato has a daily podcast which is liberty-minded in a limited/constitutional government way. Econ talk is excellent, regular, and educational. While not strictly liberty-oriented, Russ Roberts is distinctly pro-market and often talks about public choice theory (the principal/agent problem at the heart of government's inability to function) and is great background for any liberty minded person to have when trying to communicate with statists. Freedom watch has an audio podcast... Just a few ideas.