The 5d and the 28 f1.8 are mine. I just picked them up from my friend at Grand Central, and spent about a half hour shooting there at 1600 and f1.8.
Results of 1600 compared to 1600 on 40D – night and day. 1600 is 100% usable. Will post pictures later. On my way to do my usual duty – dropping off packages at Fedex. I’m very happy looking through the viewfinder, and the camera seems quieter than the 40D. A lower-pitched click. Smoooth, shutter. Nice to see things back at full frame, though I had gotten used to the cropped view.
Also nice, my batteries for the 40D work with the 5D as does my cable release. All in all – a great deal for me. I even had a chance to stick the camera on a tripod for a few moments at Grand Central at do some hdr. That classic shot with the windows on the other side always being blown out – should be interesting to see what hdr can do since I have one of the bracketed shots at 1.5 stops under.