I just bought a 5D III last week and I hope I can get to the standard you set. I have avoided that zoom you used given some of the feedback ( there is a lot of L lust floating around here) here but I should have gotten it for my 40D. It is amazing and I just went back a read up on the great reviews it has received in testing. It is too late for me as I bought the L version.
There some really great shooters here and I have for long time enjoyed visiting. The bird photos by all the posters are wonderful. AnselA Thanks for the info posted.