Well, this is the part of the season where the Bills are going to struggle.
Romo getting some good support form demarco murry and the run game is huge. That and the Bills won't be able to stop the run. Witten will have a big game over the middle as well.
And in regards to Dallas motivation, this is the part of the season for Dallas where they can go on a little run. Philly just lost, again and the Giants are in for a battle in San Fran.
I think Dallas controls the game from start to finish and gets a head of steam where the schedule is "softest" for them.