Wow I am suprised I did not see this topic before. Outside of drone and electronic this is probably my most listened to genre of music. I am in love with sludge, black metal, death/doom and funeral doom.
I figure though most of you enjoy thrash and [ower so I would recommend Morbid Saint - Spectrum of Death for thrash and Jag Panzer - Ample Destruction for power.
http://www.last.fm/user/TexColorado
In case anyone on here has one.