Metal choir

[windir]

hi all!

i'm not a synth expert so i would like to know how to obtain a sound like the synth\choir in this song.I've tried some free stuff like dsk choir and magnus choir but they didnt give me the expected results,since they sound really too different from the preset in this song.I know there are beautiful libraries from east west,tonehammer and so on,but they're really expensive and maybe more oriented to another kind of music than metal (gregorian chant etc etc).Can you give me any advice to achieve the sound I'm looking for,maybe specifying some vst with wiche I can easily achieve this sound??

Thanks in advance.
Here's the song and the choir.

http://www.youtube.com/watch?v=N5irNnMNJqk

[Anuman_mp3]

I'd suggest looking for libraries of metal screaming vocals, honestly. or you'd spent an enormous amount of time inputting all the inharmonics into normal choirs.