After nearly two months of waiting, the iconic Dow Jones Industrial Average (DJINDICES: ^DJI) has finally eclipsed the vaunted 20,000 mark. For Wall Street and investors, Dow 20,000 represents a major step forward for the U.S. economy and the stock market. It firmly places the Great Recession in the rearview mirror and reaffirms that the multi-year bull market is still well intact.