I honestly can't think of any black metal bands that don't have hateful vocals. I think when you form a bm band you have to sign a form stating you'll always sing evil. :)
The band Septic Flesh is more death metal, but their singer uses both the growling and a voice like Geoff Tate from Queensryche at times. Mostly just for choruses though, and not very often overall. Still, a pretty cool song. The whole CD is excellent.
http://www.youtube.com/watch?v=hCYtak1naHU&feature=relatedAnd again, not black metal, but the singer in Opeth is amazing and uses numerous vocal styles, often within a single song. There's at least 3 vocal styles in this song...
http://www.youtube.com/watch?v=lk6Q4FpW-sYWait, I can think of something. Here's some ambient bm by Xasthur (pronounced Za Sir....go figure). On his brand new one he has a woman singing on some of the tracks. Ok, maybe not singing so much as using her voice for effect. Pretty mellow stuff....great with no lights and a depression!
http://www.youtube.com/watch?v=WZJqWu9fTiE&feature=related