You can ring my bell curve - I checked out Nate Silver's latest analysis on the Presidential race and he's updated his "chance of winning" for Obama to 80% meaning he's still a 4-to-1 favorite over Romney.
I know that Silver is following his model but you'd be hard-pressed to find a bookie to give you those odds even before the debate. Very small changes in the likelihood of winning certain states (e.g. Ohio) will shift these projections rapidly since we're on the steep side of the electoral vote distribution. Stay tuned for the big update after the new polls come rolling in.