Lux Aeterna(by Clint Mansell) - Requiem for a Dream

there's nothing to discuss, it's simply perfect.
I'm listening to it these days on my MP3 player when I go to work, it's fantastic. I'm watching people and cars going by, and hear nothing else but this masterpiece, it's like being in a film. Do you know any similar music?
 
Although a great deal older and not so boisterous, I like this piece of music by Saint-Saëns. I used it in a trailer I made as a film project in college and it worked rather well...

 
It's obviously a fantastic piece. Shame people had to ruin it by putting it in every single film/program/youtube compilation at some point.