I agree the d4 would be better, but not on your wallet. I would keep the order and find out. I have a feeling if you don't like it you won't be taking a hit getting rid of it. Also I agree that it should be a better than the 7000 whitch isn't far behind the 700. That being said if you are not happy with the 800 I would go D3s or D4. Not sure I would even buy a 400 if you keep the 800. It's already a 7000 equal if your using dx lens or need the reach.