As a small continuation to Champi's post, i found a small recreation by Cryda Luv' of the new Daft Punk track made for Tron Legacy.
Its quite a good preview of what the original is, and to be honest, it is fantastic. Like a mixed, futuristic version of Da Funk and the riff in between Too Long and Steam Machine in Alive 2007. Awesome.
Daft Punk - Tron Legacy Theme (Reworked By Cryda Luv) [right click to download]