good to decide on bodies, but what about lenses, imo are more important. Your choice of lenses may be different for different body. Are the two lenses for 7d upgrade of your current, or addition eg. faster lenses?
I would reccomend a 24mm f/1.4 lens for sunset etc, or maybe something wider if using the 7d. running and jumping animals, if they are far away, longer lens may be useful eg 400mm+.
Personally i find the 35mm f/1.4 very nice to use on 1.6x and full frame body, a lens worth considering if you like walk around prime.