if it was aluminum black would be cool. but i like the pro aluminum just fine. I kinda wish the apple on the top was black though. I really love the new imac, the way the black apple just pops of the aluminum. Plus it would tie them together more. I know apple loves the brand recogintion of the glowing apple's and all in public. but i think it's over now. or maybe they could set it so there was a thin stroke of light around the apple. It would look great.
or even if they made it a darker shade of grey and had a red backlight keyboard