I recently upgraded to an EOS 7D from a much used and much loved 30D. Had funds allowed I would probably have upgraded to full frame at the time. I now have the opportunity to upgrade (?) to a 5D Mk II that is in mint condition but would be interested in opinions as to whether I should or not. I have always considered that full frame is the place to be, but the 7D is such a good camera. I do not need the 8FPS that the 7D offers for the type of photography I do. I consider myself a competent photographer. I have been involved in a few exhibitions of my work and have some success and work to continue this progress, which is partly why I feel I should take the opportunity? Opinions please?