The Obama campaign has moved QUICKLY, check out this series of ads. They are pretty devastating and are a huge part of why Clinton was able to defeat Bush in 1992.
YouTube - "Fix the Economy" Ad
YouTube - "Better Off" Ad
YouTube - General "Three Times" Ad
YouTube - "Seven" - TV Ad

And the Obama campaign is doing a good job of putting out localized negative ads that get at issues people in those states care about.
Ohio
YouTube - [PRES] Obama: Punch
Nevada
YouTube - "Backyard" Ad
YouTube - Nevada "Dangerous" Ad

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Yesterday, John McCain actually said that if he’s president he’ll take on, and I quote, 'the old boys’ network in Washington.' I’m not making this up. This is somebody been in Congress for 26 years, who put seven of the most powerful Washington lobbyists in charge of his campaign. And now he tells us that he’s the one who’s gonna take on the old boys' network,” he said. “In the McCain campaign that’s called a staff meeting!- Obama, 9/17/2008