I think that your shots with the 300 f4 are among the best bird shots posted here. Now that you have shot with the 200-400VR, how would you compare the two, picture quality wise? I know that the 200-400VR is a great lens, has VR, and goes another 100mm, but, in your opinion, is it really worth 5X to 6X what the 300 f4 costs?
I can't wait to see your shots with the 300 2.8. Should be an interesting comparison. 8)