I am shooting with a Nikon D300 that I just bought. The images from this camera are incredible with the colors and the sharpness. Nikon makes a great camera, whether it is a top of the line D700 or a D80. I just recently sold a d70 that I was shooting with for a couple of years, and that was not a bad camera by any means.
I sell my photographs as prints through the internet and at art shows. My website has a better description of how sell my photography.