An undefeated Clemson in the ACCCG would probably be ranked #2 in the country at that point even with an undefeated Oregon or Stanford and Ohio State. Would be very interadesting what happens from there.
If Miami and Clemson both meet up in the ACCCG undefeated, the winner of that game is going to have an automatic spot in the BCS national championship imo. That would mean Clemson beat UGa and South Carolina w/ Miami having a win over Florida. No way the ACC champ gets left out of the BCS MNC in that scenario.
What would be interesting would be who feels the next spot.... what if Oklahoma or Baylor goes undefeated in the Big 12, Oregon or Stanford runs the table in the Pac 12, and then of course there is Ohio State. I'm leaving out the SEC b/c i think this is the year they get shut out completely, or at least thats what i want to happen. (hopefully LSU beats Alabama and aTm, while losing to Florida and that way the winner of the SECCG would be irrelevant in the MNC picture.)