Wow, I'd never heard of Rockbox until now. You may have just changed my life. Since I've only ever really used my Sansa for podcasts I never bothered with a amp or anything. I'm not much of an audiophile I've discovered (which is easier on one's wallet) RE: RadioLab - It has a rich back catalogue that's well worth picking and choosing what sounds interesting. The episodes, I find, are quite timeless. Much like This American Life, it's not a current affairs show. Dan Carlin - Definitely politically neutral. He's a great one for including serveral perspectives from several historians. He cites so many different books. The level of research and effort in one episode is staggering. He'll also weigh in with his own suspicions or estimations, which come from a place of deep experience in not just reading history, but understanding the tendencies of historians. When they tend to exaggerate, or baises, or blindspots, etc. The podcasts are always part history, part psycology, part parable. Rich stuff. CBB - I can't speak to the tv show, I'm only ever listened to the podcast. I will say, they do an absolutely terrific top 10 at the end of every year. They really do pick out some of the best moments (5 to 10 minutes long). The show has a fair number of running gags, which will be lost on new listeners, but is just as often some new gag has it's origins in the episode you're listening to.