TV Wall Mount For 16" Studs?

[DrinkMore]

I am trying to find a wall mount that will make use of my 16" studs. I have marked everything out on the wall and there is a stud, dead center on the wall where the tv will go. Out from the center, 16" on each side - is another stud.

However, all the mounts I am seeing are 29" or less. I think the only mount I can go with is the .. Sanus VMPL3B

http://www.amazon.com/Sanus-Systems-...9297032&sr=8-4

Is it over kill for my 50" PZ800U ? Lol. Problem is when I mount this thing on the studs, it's going to be off. Even if I can slide the tv left or right to adjust, it's not going to give enough room.

Ideas? 150 for a mount isn't too bad.