What's this song called and who is it by?

[Gundam-Ranger-X]

http://www.youtube.com/watch?v=46YDA1FMcVM&search=warhammer%2040k

What's the song in this video and who is it by? I need to dowlnoad it.

PS: The end is the awesomest thing in all of Dawn of War (Avatar vs Bloodthirster)

[Dogmatix]

It's right next to the video... "Music by Within Temptation - See Who I Am"

[Gundam-Ranger-X]

Well I feel stupid now.^_^;