A long time ago I signed up for Obama's newsletter, so I still get emails from him. The guy really, really hates Hillary. It's cool that he's not accepting any funding from corporations, so his campaign is funded entirely by the people. Hillary doesn't care where her money is coming from.
So if Obama does make it to the final round, I'd vote. But I really doubt he will.
I believe that if corporate executive donate to his campaign out of their personal finances and not from the company coffers it is still designated a donation from an individual, so saying he doesn't accept money from corporations can be misleading. With that said however I don't see Obama going anywhere in this campaign. The guy came out of nowhere to run for president and quite frankly I don't think he has any serious aspirations at running, I think he is just a poster boy. Sadly, all of the major money is behind Hillary and they usually don't back losers. IMHO unless Ron Paul wins the republican nomination, the chances of which becoming much better, than it'll be a Hillary Clinton White House until 2012. IMHO non of the republicans, save for Paul, have any shot what so ever.