One of the topics that Jeff touched on that generated some interest from the callers was the current economic collapse (which is here now and going to deepen). The best presenter of the causes and solutions to the current situation in my opinion is Peter Schiff. I have linked to several YouTube clips of his below showing him calling the crisis, talking about what we should do now, and finally one where he talks about his book How an Economy Grows and Why it Crashes (click the link to purchase from Amazon). This book takes less than two hours to read and gives you all the information you need to know. You don't have to become an expert in economics to understand it.
Peter Schiff was Right:
Peter Schiff 2006 Mortgage Banker's speech (where he tells them housing is going to crash):
Schiff at the Mises Institute discussing the collapse and what's next:
Some of these videos are long, but a couple hours of your time could save you a massive amount of money as this crisis deepens.