“[The austrian economists] answers […] to the question of why economic booms and busts are cyclic events is referred to as the Austrian theory of the business cycle. Their conclusion can be found in the artificial lowering of prices, not of bricks or lumber, per se, but of the price of money itself.”
Peter Schiff gives a great talk which covers quite a lot of ground. What is money? How did the world leave the gold standard? What are the consequences? Is capitalism or the free market to blame?
This talk was apparently given as a part of a bigger event with other speakers, including Ron Paul.
Can be found at mises.org.
A really great interview in plain english on the economic situation from an austrian perspective.