yeah, listen to whitechapel job for a cowboy as i lay dying devil wears prada, dont really like all of'm to much but there okay, but whitechaple is so intense i dont listen to it but its what your looking for and its REALLY heavy.
Cannibal Corpse
August Rush
Brutal Truth
Cradle of Filth
Frenzal Rhomb
November Blessing
They are the only one's that I can think of off the top of my head that has a majority of their songs devoted to screaming.
*They are bands by the way*