I just sold my 5D, and almost all my lenses.  I think people believe I am crazy by switching equipment or buying equipment so often, but I have almost found the perfect equipment for myself.  I recently had trouble with the 5D while taking pictures at the baseball game and was wanting something  a little more reliable.  I will be a Nikon user.  We will see how this fairs for me, and I will update whoever is interested in this switch.