We all know that nationwide polling numbers don't mean squat, so I've been looking for a site that compiles aggregate polling data state-by-state from multiple polls.
Here it is. (They also provide some data from 2004 to show historical accuracy.)
I'm having a hard time believing the Democrats will be able to pull off Texas, so right now it's still looking like it's gonna come down to Ohio, which fits with my prediction that whoever gets the Democratic nomination must get Ohio Governor Ted Strickland to accept the VP slot to have any chance. Otherwise, I predict McCain will win.