Cnet is known for these mini reviews they cook up in 5 minutes, but this one is actually ok: "The biggest draw for current Canon users thinking of stepping up from the 50D (or that class of camera) to the 7D is the improved autofocus and better photo quality at higher ISO sensitivities; it's significantly better than the 50D in those respects, and well worth the price differential. Things aren't quite as clear when compared with the 5D Mark II. On one hand, the 5DMII's photo quality remains superior across the board, and the benefits of getting true wide angle on a full frame camera shouldn't be understated. But the 7D's autofocus is perceptibly faster and more accurate, the operational controls are, for the most part, more streamlined to use, I like the viewfinder better, and the 7D's video options are more flexible and better implemented. That's a lot of "but" for about $1,000. I also think the 7D slightly edges out over the D300s, in part thanks to better body design and performance, though the former is clearly subjective. Nevertheless, I don't think this is the Canon model that will (or should) have Nikon owners selling their lenses just yet." Link