I have turned into something of a podcast junkie recently, and one source of excellent material is The London School of Economics public lecture series. This week, however, there's a particularly prominent guest speaker in the form of US Fed Chairman Ben Bernanke. The title of the talk is "Policy Responses to the Financial Crisis" and I highly recommend you tune in. There will actually be a live webcast of the event (Tuesday, 13:00 GMT, 8:00 EST) for those who want visuals.
The trouble with high profile speakers who hold public office is that their talks tend to be vague and pull punches on sticky issues - that Bernanke is operating "between" administrations with different policy response ideas won't help either. That being said, however, it will definitely be worth a listen.
While you're at it, I also highly recommend a talk by Paul Collier, author of The Bottom Billion - an excellent book on poverty reduction that's aimed at non-academics. You can also find him doing a (shorter) TED talk here.
