mr_birdman
No longer a Canon Snob.
Not plugging a bird photography forum, but if you go to Birdphotographers.net you will see that more and more people use a 1D MkIV now. Sure, some 7Ds out there, but if you are serious, then the 1D should be your first choice IMHO. Best of luck. (oh and the 500/4L IS is a kick-ass lens as well!)