Does anyone have an idea how the D800 compares to a D3x...???? Or better yet add a D3x down sampled to 12mp and compare all three.... I think a D3x would be a better camera to compare D800 images to. I fell it's been proven that a D800 down sampled to 12mp will look better then a D700... but what about down sampled to 24mp (D3x)????