I'm a fan of the Are We Alone? and Skeptical Sunday podcasts that Seth Shostak does for the SETI institute.
When I discovered his article telling ID creationists to stop, stop I say, using SETI as a smoke screen for their pseudo-science, I loved it.
Particularly salient are his points on experience and recognizing design by comparing to design.
Do check out the SETI podcasts in iTunes. There's a lot of good stuff in it.