Here's a good interview on CNBC with Austan Goolsbee, Senator Obama's chief economic advisor. I don't buy his proposals, but he explains them fairly well here.
Warning: what a political candidate's economist says is not likely to be what the elected official does. Anyone remember Nixon's wage and price controls, or Bush's steel tariffs? Nixon's and Bush's economic advisors would rather have their daughters turn out like Britney Spears than have their president adopt such stupid policies.