Mike: There is no doubt that the D1x is a better camera all around than the D100 (D1x is based on the pro F5 camera, D100 loosely based on F80 consumer camera). D1x has the F5's auto-focus circuitry, has a top shutter speed of 1/16000 sec (D100 = 1/4000), etc. The question becomes, is it $2000 better than the D100 for your needs? :) I find the D100 to be a good camera. Ergonomics with the battery grip is good. Camera felt good in my hands, although not as solid as the EOS 10D (probably because the 10D has a more solid feeling magnesium alloy body). The grip also gives you a vertical shutter release and command wheels (the D100 has 2 command dials, Main and Sub). So far, I have only one complaint. This may be user error (remember, I only got to play with it for a bit before shooting this show), but I pretty much kept the camera in automatic mode. I was not completely impressed with the 3D matrix metering. It seemed somewhat inconsistent. When I'm shooting a full or 3/4 shot of a model with extremely dark background or lots of strobes/lights in the background then I can accept that the metering might be fooled a bit - but I wouldn't expect it with the 3D metering; but when I shoot a full face portrait type shot while standing less than 6 feet away with the model's face taking up probably 90-95% of the frame I expect the camera to meter correctly. What's weird is, there are several examples where a shot is very underexposed and the very next shot taken from the exact same spot a half second later is exposed correctly. I have read that at times, the computer in Nikon Speedlight's can get a little confused and need to be reset (something about pulling the batteries out while powered up and then do a reset. Of course, being a Canon guy, this sounded crazy to me when I read it. But, oh well - maybe it's something like that. -=>Donald