I photograph wildlife (and a little bit of bird photography) with a D300, currently with a 300mm f4 lens. I am thinking of upgrading to the D700. My question revolves around quality of the final image (sharpness and detail). Will I get better quality from the D300, given it has a 1.5x crop factor so my 300mm lens is a 450mm lens essentially. Or would the quality from a D700 using the same lens be better despite having to crop a sizeable portion of the image away to get an image which matches in size that of the D300. (the 300mm stays a 300mm due to no crop factor). I have no desire to use a tele converter, or buy a more powerful lens. So, the same object, at the same distance with the same lens on both cameras. Would the D700 after cropping give a better final result than the D300. I would appreciate any opinions, especially those from anyone owning both of these cameras.