Mike Johnston writes one of the best articles of the year, on the subject of the "big three" of this season. Do not buy any of these cameras until you read it: "The ultimate in image quality: Belongs to the Sony A900. That's assuming you're someone who knows how to use it and is willing to use it as it's intended to be used—it's not perfect for every style of work. But between its staggering resolution and very good dynamic range, its willing response to the Exposure and Recovery sliders, and its more "photographic" image quality (more on this later) and lack of digital artifacts—and despite its less than-accurate color—it's the IQ emperor for now, among these four (i.e., the three under discussion and the D3). Downside: ya gotta need (or crave) that resolution. Otherwise it's just an also-ran. But if you do, you're just not going to get more impressive image files out of a 35mm-styled and -sized camera body." Link