If I read this right the USA poll and the Harris poll is 2/3 rds of the overall BSC ranking.

To derive a teamís poll percentages in the Harris Interactive and USA Today polls, each teamís point total is divided by a maximum 2850 possible points in the Harris
Interactive Poll and 1500 possible points in the USA Today Poll. Teams are assigned an inverse point total (25 for No. 1, 24 for No. 2, etc.) for each of their respective
computer poll rankings to determine the overall computer component. The highest and lowest ranking for each team is dropped, and the sum total of the remaining four
rankings is divided by 100 (the maximum possible points). This figure produces a Computer Rankings Percentage. The six computer ranking providers are Anderson &
Hester, Richard Billingsley, Colley Matrix, Kenneth Massey, Jeff Sagarin and Peter Wolfe. Each computer ranking accounts for schedule strength within its formula. The
BCS Average is calculated by averaging the percent totals of the Harris Interactive and USA Today Polls, and Computer rankings. The highest BCS Average receives the
No. 1 ranking, the second highest receives No. 2, and so forth.
The BCS is a five-game arrangement for post-season college football that is managed by the 11 Football Bowl Subdivision (formerly Division I-A) conferences and Notre
Dame. Its purpose is to match the two top-ranked teams in the final BCS standings in a national championship game and to create competitive match-ups in the four
other BCS bowl games. For more information, visit http://www.bcsfootball.org. The No. 1 and No. 2 teams in the Dec. 2 BCS standings will play in the Allstate BCS
National Championship Game Jan. 7, 2008 in New Orleans, La. The winner of the game will be presented the American Football Coaches Association National
Championship Trophy.