I do, too. And I think I do believe him, more than I've ever believed any other leader in my lifetime (sorry, Jimmy Carter!).
I remind myself that there is no perfect candidate, that no matter who it is, I will have differences with that candidate. Obama has never once made himself out to be perfect and, despite what some people say, has disappointed most of his supporters at one time or another with various votes on this or that (I was furious after FISA). I never feel, though, that a vote has been made rashly, that he hasn't thought things through. And his campaign has been an organizational marvel to behold; I have a lot of respect for the brains are sheer ability it takes to do what he's done... AND HE'S REMAINED HUMAN THE ENTIRE TIME.
I think, for me, what it is about Obama and what it has been since that day 4 years ago when I took the kids to see him on campus here (and he made conversation with Lilly about her Harry Potter book) is that he's helped move things in a direction that will force US to think, too, and to vote and participate and have our say - even if that say means he's not elected or, if he is, he's elected for one term. He has all the signs of being a great leader, elected or not.