How about...
Daft Punk? Or had that been listed already... Actually it's a whole playlist of different stuff I normally listen to when I'm in a scifi mood.
Homeworld PC game soundtrack
Mass Effect PC game soundtrack
Tron Legacy film soundtrack
Deus Ex Human Revolution PC game soundtrack
A mixture of Zircon music from OCRemix
A few tracks from Ghost in the Shell: Stand Alone Complex
Ergo Proxy anime soundtrack