I think you will love the d4. I shoot a lot of wildlife images (birds and birds in flight) and the d4 is best for this type of photography. I rented a d800 and tried it out, then went ahead and bought the d4, I had a d3s before. The d4 has a strong body which is the camera to have in rough terrain and weather. Its one wonderful tool and changing the settings is quite and efficient. Have fun with your new camera and post some images.