Well, here's how I see it now.
Alabama / Georgia is a defacto national semifinal game. My money is Alabama going away decisively (say by 10 or so) but maybe Georgia can do it? I suspect a boatload of errors from Aaron Murray next Saturday, but IF Aaron Murray can play well then Georgia can definitely hang with Alabama.
Notre Dame wins tonight: book the ticket, easy, no controversy.
if Notre Dame loses tonight: Stanford looks like they're going to beat UCLA, but if UCLA does manage to mount a comeback and then Oregon beats UCLA in the Pac 12 title game, I can definitely see Oregon jumping Florida. Oregon is already ahead in the human polls that matter (so there would be no real reason to drop Oregon behind Florida especially given 2 more ranked wins on Oregon's resume) and the computers are the only reason why Florida has the slight edge in the BCS at the moment.
Of course, if Stanford wins, nuke everything and Florida would be in the title game IMO with a Notre Dame loss, but it would be interesting to see if the humans would conspire to keep Florida out of the title game. The computers love Florida so there's no worry there. I think Kansas State is just going to be on the outside looking in after TCU's upset loss. That win over Texas would've looked a lot sexier with a #11-#12 Texas rather than most likely a low 20 Texas.