Obama: 458
Palin: 80
Explanations:LA: Biden as a White Catholic who would win the black vote unanimously vs. a tool like Palin. I would go out on a limb and say he'd win the Cajun vote.
AR, TN, KY, WV: Still either very Democratic (AR/WV) and fairly Dem (TN) and Biden definitely appeals to white blue collars plus these states are not as religious as some may think.
PA: D>60% and DE: D>70%: Biden on top of the ticket would electrify the votes from Scranton to almost OC, MD plus I could see him winning PA 3, 4, and 12 out in Western PA due to the ... Yeah, what Jack Murtha said.
Temptations:SC (Upstate and Bob Jones pulled me back), MS (Obama not on top), and WY