I am really wanting to see what full frame is like. But The 5d mark II is way out of my budget. I recently got a good deal on a 100-400L and don't think I will use the 70-200 2.8L non IS much anymore. I have a 50d and would probably keep it as a 2nd body and to share with my wife. I would have the 50d for sports and 5d for portraits, landscapes, and macro. Does this sound like a good idea or will I miss the 70-200. If I get rid of it I probably won't be able to find another at good deal.