Great article from Karl Donk on the shortcomings of the 5d Mark II and I couldn't agree more. I've had a 5dII for the last two years and it frustrated the life out of me. I hate the damn thing. I've recently switched to a Nikon D700 and I couldn't be happier. I'm still working on a detailed piece about the switch which I'll post soon, but read this. It's very well written with lots of quotes from Pros and well known photographers who've had similar issues.