I have recently added to, rather than, perhaps, upgraded. I had no intention of doing this - until the reviews on the D3 came out. The D3 has taken photography to new horizons. Its low light capability is unbelievable. I have taken photographs at ISO 25,600 and they are remarkable. Selling off underused Leica and XPan gear not only funded it and the new 24-70/2.8 but left plenty in reserve.

So,I have added FX to DX, which I still love with the D2X. But more importantly, I have added to my photographic capabilities in a way I had never envisaged. As Bjorn Rorslett has said, we are not talking about 'available light' but 'available darkness'.