I still think Kerry is going to win the election, although I don't think it's going to be clean. Expect court battles that last for months. This time, however, the Dems will fight back harder than they did in 2000.
Don't discount either, the public relations battle. Part of Bush's winning strategy in 2000 included flying Republican congressional staffers into Florida and having them storm the offices of local boards of elections posing as concerned voters. Remember the "Sore/Loserman" signs that were prevalent during the contested part of the election? Think those just appeared out of nowhere?
Democrats, in general, like to play nice with others. Flush that instinct for the next few months. It could be ugly.