Eamon Hickey just reviewed Canon EOS 5D and gave it 7.9 out of 10 (Very Good) at CNET. In conclusion he wrote:
“The good: Top-notch, high-resolution images; 35mm-size sensor obviates focal-length conversions; big 2.5-inch LCD; unmatched low-noise images at ISO 1,600 and 3,200.
The bad: Overall build quality and performance typical of much cheaper cameras; no constant ISO display; images show occasional red fringing around highlight transitions; automatic white balance occasionally inconsistent.
Our test images from the Canon EOS 5D are superb overall. Its 12.8-megapixel sensor delivers loads of detail and smooth, rich tonality. The dynamic range in our photos equaled–or bested–the results from every other dSLR we’ve tested, with the exception of the Fujifilm S3 Pro. Noise in our ISO 1,600 and 3,200 test images is astonishingly low, yet detail is retained. It was easy for us to get natural, smooth skin tones with many complexions. All in all, this camera is a top choice for shooting portraits, still-lifes, landscapes, architecture, and some kinds of commercial studio subjects, especially if you need or want to make 16×20 or larger prints.”