@Ian: these are straight-from-camera JPG files; the D2X isn't as bad at ISO1600 as most people reckon it is... you just need to nail the exposure, WB and use the correct colour and contrast settings. I was shooting RAW + JPG Basic, allowing me to get usable files straight off the card and also having the safety net of a RAW file should I really pooch a particular shot - fortunately I only did that with 3!
Still, if you take a look at shot #9, you'll see some dark frame noise in the left hand side of the shot, caused by a lightsource with a slightly different colour temperature to the WB of the other ambient lights - perfectly illustrating how WB affects ISO noise.
@Skip: My wife was there on fight night as my assistant, and she took the CF cards off me when they were filled and segregated shots into pre-set folders for each fight. I set Bridge to view only the JPG files and skimmed through them, looking for shots that contained peak action. Those were then labeled in Bridge for captioning before transmitting.
In total, this meant that I whittled down to 161 shots from the fights out of the 1133 taken, and 38 shots from the press conference; almost exactly 14% of the shots I took - or a 1 out of 7 ratio, whichever way you want to look at it. My 'keeper' rate for the fight was close to 85% but, for sports shots, the image has to tell a clear story and a lot of the 'ground and pound' shots didn't convey the action well enough.
@Everyone else: glad you liked the shots - you can see more of them here
WireImage - UFC 72 Fight Night
WireImage - UFC 72 Pre Fight Weigh In
WireImage - UFC 72 Pre Fight Press Conference