Even at 9-3 Baylor isnt likely going to a BCS bowl, for two reasons. One, if OU beats OSU they are both going and they won't put three teams from the same conference in the BCS. Two, a BCS bowl with Baylor in it won't sell out. They won't pick Baylor over a school like Michigan.
Baylor is likely headed for the Cotton Bowl, but again that is a question mark because bowls pick teams based on both record AND who they believe will sell the most seats. A&M and Texas have both gone to the Cotton Bowl before with 7-8 wins because they know those fanbases will sell it out. KSU fans travel better, they might get that spot.