I already have a Nikon D5100, but I've been thinking about getting myself an older Professional DSLR, looking at anything from a Nikon D1, D1H, D1X, and the D2H (If I can afford it). I know that the batteries can suck, but I'd be getting aftermarket ones to cure that issue. Now does anyone here have any experience with any of these cameras? I don't want any here-say or anything, theories are okay, but please no random guesses. I've already heard that pixels don't matter too much, except in picture size. The good thing I know is that my current DX lens I have are completely compatible as far as I know.