I will do this in the fashion of W.Hi.P. Betting Tips.
Democratic nomination
Barry Obama v Hill Clinton @ Pennsylvania
Clinton is heavily favored in this state, by 20 points, and has been for months. However, she has just "hit the wall"; a combination of unfavorability trends is working against her; and she has nearly run out of money, according to some sources. Meanwhile Obama is saturation-bombing the airwaves of PA. Polls are starting to narrow the gap and there are three weeks left.
Bet on Obama to win Pennsylvania = Currently $3 to make $10 @ Intrade
Bet on Clinton to drop out after Pennsylvania = not wagered at Intrade, but predicted by UT anyway