From Macenstein:

On a scale of “1 to Awesome” this LEGO Mac Pro rates a solid Awesome. Not only is it a faithful scale model replica of a real Mac Pro (designed using Lego Digital Designer 2.0), the thing actually houses both a Hackintosh PC running OS X AND a Mac mini.

Awesome, indeed.  If they sold this as a $200 lego kit, I could be convinced to buy it.