astcell: The D4 is perfect for me. I am selling my D3s. I use 8+fps shooting speeds regularly. I shoot at 50,000 ISO regularly. Black cat in a coal mine stuff. The D800 frame rate is waaaay to slow, and the ISO peaks too early.
I shoot very little video but the D4 wins out for other reason I have yet to see confidently addressed, such as:-Easier layout of controls for video use-Backlit buttons-Faster motor (even 1fps more helps out)-Cleaner lines
Yup, I splurged and got it. I'm sure my subjects will not know the difference, but when I get that one shot it will all be worth the while.
Frustrated? Take a walk in the wild and shoot some beautiful pics. And please don't litter the forums.