I would imagine there are two kinds of Republican in the wake of this election.   

One sort would of course feel disappointed at the result, but would see the fact that America has elected a black candidate as a consolation, something to soften the blow. The same way I hope that most Democrats would have felt, if the boot had been on the other foot, and say Condoleezza Rice had been elected President.

And the other sort would be those who would see Obama's colour as something that made the loss even worse. And they are the one's you need to watch out for.

The good thing about McCain's concession speech, and Bush's response as well, is that they pretty clearly indicated they fell into the former category.