Any chance you could edit the Quick Access Toolbar so it follows the color of the bar at the top? I use the ribbon and it shows up as white and I cant seem to find a way to get rid of that toolbar without getting rid of the whole ribbon.
I works but I honestly don't see that much of a difference with most of those Windows 8 themes, compared to the way Windows XP themes worked. The theme framework included in Vista/7/8 seems less flexible.
There's a theme named "Dominion" (by KoL) on Customize.org which turned out to be a good choice for my XP a while ago. I'd be delighted if it was possible to port that theme to Windows 8, or probably create a very similar one from scratch.