When I had my 7D and 5D Mark II, I actually had picked up a 1D Mark IV for sports at the time too. So I ended up selling both the 7D and 5D Mark II for a new 5D Mark III. As the price will indicate to you, the 5D Mark III blows both cameras out of the water. It can do everything both the 7D and 5D2 can do, plus additional tools. If you have the funds, you won't regret it one bit. I liked it so much for what I was doing, I purchased another one.