http://www.espn.com/nfl/playoffs/machine
I have ran about every scenario I can think of through the playoff machine. It appears if we are going to win the West, we must do it outright. A tie with either the Chargers or Raiders at 10-6, the tie breakers go to either of them, and we would probably be the 6 seed.
9-7 ties are the same, unless there is a 3 way tie between us all, and then we would be out of the playoffs all together.