At first, it was argued that someone like Dino Rossi could be "our Obama" - someone not in a major elected office for a lengthy amount of time but an energizing, appealing figure.
Well, we know what unfortunately happened to Dino but how about the current Attorney General of Virginia - 2009 Gubernatorial nominee Bob McDonnell?
I know it seems a bit far-fetched but let's give it some thought. He obviously has to win the Gubernatorial race (which will be very difficult against Deeds or Moran). Let's assume he wins it. He takes office in January 2010. He'll get some national attention because it would be a Republican winning in a battleground state that went for Obama. He'll be 58 in 2012 with a relatively young family (his youngest will be 21 and oldest will be 31). A huge asset will be the fact that he's a Governor with really nothing to lose (especially since he can only serve one term anyway). Another plus is the fact that he is from Philadelphia!
Now the drawbacks are obvious - He will have to decide to run for President no later than a year and a half into his term but I don't know if that's really that damaging anymore. Obama had to have decided to run at roughly the same time.
I think the guy could be a serious contender. If McAuliffe is his opponent and he can score a sizable victory, look for him to be considered a rising star.