this time i'll not bother with links, but here are some other good DBM bands:
Make a change... Kill yourself
and this is worth linking without question: Lunar Aurora Findling - YouTube
Grevona: some really great suggestions there, even a couple i had not yet heard. :)
i'd agree that Darkthrone in general can't be considered DBM, but they have shown certain tendencies towards it for sure. then again, they worked quite a bit with vikernes, so it's not too strange.