can anyone recommend any bands in this genre?

i am a huge tool/apc fan, but beyond that I'm not sure where to look.
i recently found out about ISIS, whom i really like as well.
basically, I'm looking for stuff like ISIS. melodic at times, heavy as f*ck other times, minimal amount of vocals, unless they can come close to maynard.

basically, i can not stand metal vocals. most of the music I hear is good, then some douche comes in screaming his head off and ruins it for me.
examples...... meshuggah, kitty, killswitch engage, candiria, etc. i love the beats, but i hate the vox

anyone got any sugestions?
much appreciated.