I think we would go undefeated in the Big XII, Big 10, ACC, PAC 10, and Big East this season if we were playing the schedule of all the respective top teams in those conferences (Mizzou, Mich St, Va Tech, Oregon, and whoever is good in the Big East). And then depending on the schedule, I think we could go undefeated in the SEC.
The only PAC 10 team I'd really be worried about beating is Oregon, and I think that would be a toss-up. But Oregon doesn't have to play Oregon, they have to play the rest of the PAC 10, which is ok, but nothing special.
As far as Auburn goes, all of their tough games are/were at home besides the upcoming tilt @ Bama. I think we would beat LSU, Clemson, Arkansas, and South Carolina at home. I don't know if we would go into Tuscaloosa and win, but Auburn hasn't done that yet either.
I think you've got it about right..