>As far as the OP is concerned he needs both cameras on the >same settings and sharpness/contrast and back focus are all >part of that comparison....
As I stated before, same settings between different generation bodies does not necessarily equate to same end result.
For example Thom Hogan suggest Nikon tweaked the Bayer Filter array in the D7000 which in itself would require different handling. I would also think the pixel density difference would require a different sharpening routine.
Also the D7000 uses the Expeed 2 were as the D90 uses Expeed.
I would think it best to set each camera individually to achieve the best results for that model and stop comparing the two.