I definitely wanna catch this one more time before it leaves the theaters.
I have the soundtrack by Daft Punk. It combines minimalist electronica (Daft Punk) with a full orchestral backup, and comes out a really cool (and even relaxing, sometimes) soundtrack.
My four favorite tracks are Opening Titles, The Grid, End of Line, and Tron Legacy End Titles.
I listen to those (or the Star Wars Radio Plays) when I work on my CG models.