I'm an Obama supporter who will be voting democratic. I don't like Hillary, in fact, I like her even less as I've followed her through the primary process. But she and Obama match up about 90% in their approaches and views to policy. So whomever gets the nomination will have my vote.
I also like McCain, so I'm not terribly troubled by him being elected, I just have a massive problem with continuing this war. Our ecomonic state is in crisis, and we're just pumping money (that we don't have) into supporting a goverment that will not step up to the plate. Yes, we created the problem (correction: Bush created the problem, I did not vote for him.). But it's time to cut our losses and focus on the domestic front.
As for the Obama/Clinton issue. I hear a lot about Obama's "shady past", and you could make the same argument for Hillary. Maybe it's just because I'm a Chicagoan, and that's how politics go here. But I would happily vote for any candidate that is willing to say "I'm flawed" - and I get that from both of them.
No one is perfect, and no candidate should even try to suggest that. I believe that church and state should be completely different and should not factor into decision making on either front. I feel confident that neither Democratic candidate will let that happen.