That is so sick at 1:10 ish where the choir comes in, what samples did you use? I feel like there were some films in there, but I have no ideas which.
I used 3 samples.
All the quotes "we should reeve the enemies of god" "god wills it" "holiness is in right action" ect. were all from the movie Kingdom of Heaven. An amazing movie, great battles and plot line, which is rather historical describing the times when Jerusalem fell back to the Muslims under Saladin from the Christan crusader state of the Kingdom of Jerusalem. I suggest watching it. Theres also some string instruments from the soundtrack in there.
Next is my own song Until Rapture: http://www.newgrounds.com/audio/listen/515750
I used it for the drums and all other electronic sounds.
The last is the choir that you liked which is Fauré Cantique de Jean Racine's Op 11. Youtube it, great sound.
I should also note that the name "Deus Vult" means "god wills it".
Please contact me if you would like to use this in a project. We can discuss the details.