This is my first post. I'm 20 yrs. old and I live in Massachusetts. Became a Spurs fan through watching David Robinson starting in 1992 or so.
I would definitely start Mohammed. Even though he sucked in the Kings series, that wasn't his type of series since the Kings' bigs play away from the basket. They need his rebounding in there against guys like Diop and Dampier.
As far as the matchup problem with Dirk, Bowen should be able to limit him despite his size disadvantage. I think that by not having Bowen on Dirk, that would be a huge waste of the team's best defender. Especially since I feel that Nowitzki is the only guy that can really hurt us in the this series. No one else on that team scares me.