If you've got the time, the best way to help out is by contacting the RNC and volunteering for their 72 hour campaign.
http://72hour.com/
They'll direct you to where you're needed the most. And it looks like they'll comp you for it. Any extra help to get out the vote is a good thing. Even if a Bush victory is in the bag (which the polls indicate is not the case) it'd be all the better to move the numbers out of the margin of error/contestation. No sense in letting the Dems "10,000 lawyers in waiting" decide this election.
Will they send me to a place where I can really make a difference? I'm not needed here in my area - and that's a fact. But if they are sending people to do poll watching or after campaign work in a state where it will make difference, I'm in...
Are they sending troops to battleground states?