It's been said in many, many places and probably more eloquently than I can manage, but I'm going to repeat it:
Howard Dean is THE hero of the night. The strategy that got Obama the nomination, then won him the national election was Dean's (yes, I'm assuming California, Oregon and Washington will not go for McCain-I have a hunch). The 50 state strategy is Dean's jam and it won the presidency, the House, and the Senate for his party.
Tonight should be 80% Obama-hype and 20% Dean-hype. And the people who supported Harold Ford for party chairman in 2004 should feel mighty sheepish.