I've had a D700 for about 3 years and am still thrilled with it. So much so, that I bought another one. The viewfinder is nice and bright and the absence of the crop factor is a relief to another old film guy. But like Jim mentions, it's a load to carry around all day. That's why I bought a D5100 and Tamron 17-50. MUCH lighter and more enjoyable for a full day of walkaround photography. I'm still waiting on Nikon to put the FX sensor in a D40 body - with a screw-drive. I'll be the first in line to purchase.