Business expense? Think you can right the full amount off this year (which is only a few weeks left). Better hurry I always go back to the reviews on this site. I look at the model that replaced it more than anything. He usually shoots pretty straight on whether the ISO or new features are worth the extra. I do agree about the 5d2 already having similar button placements, and AFMA is good to have. Even if they announce a third version soon, it'll be June before it's available. Are the missed shots worth it?