My bet is a McCain and Clinton ticket in 2008 although it's hard to say who will lead the ticket. The way they fawned over each other in Iraq leaves little doubt in my mind IMHO.
Nah then McCain will have to move to the Democrat Party and then he will lose alot of the moderate Republicans who like him that way. Hillary will never move to the Republican party. She is being advised right now by her Husband to move to the middle. He tried a little to get Kerry to do that but without success but he really didn't care about Kerry. Now his wife is another story. She's his ticket back to the Lincoln Bedroom again!