So this screams iPod mini styling to me... Granted, I reckon that a white and black could/should be included, for consistency's sake. So the colors as I see them: Pink, Green, Blue, White and Black (with matching light-up Apple logos, with the exception of White and Black which will both likely have the standard white light-up logo. Another thought could be the classic Macintosh logo in light-up form...

) Here's hoping for a scratch-resistant anodized-aluminum white

(And yes, I know about the denting and the heat issues, but I would be willing to risk it. Also, this way my sister and I can tell our future MacBooks apart simply by the color.)