Ok, I had to do a second version of the video - I added a tiny bit of eyecandy... :)
direct link
I just like this tune so much I had to toy around with it myself a little: I took the two official versions of Still Alive, the theme of Valve's fantastic Game "Portal" - one sung by the game character GlaDOS and the other one by composer and writer Jonathan Coulton himself and mixed them together into a duet. While it's not perfect I think it's still pretty cool - enjoy!
Jonathan's Page