Oklahoma State will almost certainly put up a lot of passing yards. They're not going to be able to run the ball much, so they'll have to stay in the air most of the afternoon. Texas will have a more balanced mix, though, with McCoy and about three running backs carrying the ball. The UT offensive line should have an edge on the OSU D-line, so Texas will be able to have a running game.
As I mentioned earlier, I would like Texas at -10 or better and I lean toward the Under, as I don't think the Cowboys will light up the scoreboard as much as they have against other opponents. That 66 or 67 it's currently at is a tough line, though, so I don't feel real strongly about it.
It's going to be interesting to see how long Mike Gundy tries to stick with the running game. I really don't think they'll have much success on the ground at all.