Hi Russ, Your post has hit on the area I wanted to discuss. I have done a couple wedding/events at up to ISO 800 on my D200/17-55mm f/2.8 AF-S.I was not happy with the results. The D3 is outside my budget, but when I saw the D700 specs,I started thinking....similar D3 high ISO performance. I am even thinking of selling the 17-55mm and 12-24 f/4, go for the D700 with the new 24-70mm, keep my 80-200mm f/2.8 2-ring zoom as well as my 50mm f/1.8, SB 800 and go from there.Not sure how well DX will perform on this camera I too was on the verge of getting the D300 but was not convinced of significantly better high ISO performance. I am waitng to hear of a full D700 workout/review, but at this point,I am sold.