This site has some interesting statistical data on the BCS race.
If Boise wins out they have a 46% probability of playing in the big game. This is probably better than most people were thinking. The site must think that Auburn and/or Oregon have a good chance of losing some games. Auburn has Alabama and the SEC championship game (probably will lose one of those). Oregon has Arizona. Olk St has three games left.
There a lot of football left to play.