If you ever get time I would love to see the D3X vs. D7000 at base ISO! (I like to think of my D7000 as my personal D3X stand-in )
Also, feel free to re-post about what specifically might be bothering you on the D7K. We may have missed over glossed over that issue in this discussion. Certainly it is a dense little sensor that would be 36+ megapixels were it full-frame and that comes with many resulting challenges.