I saw this and thought it was pretty cool, I love the turrets.
Portal 2 - This Is Aperture (http://www.youtube.com/watch?v=JZIVmKOdrBk#ws)
Nice find.
Saw it yesterday when Valve posted it in facebook, this is awesome.
Evrybody hail to the pumpkin song , Gratz if you know what im talking about.