I was perusing this awesome site the other day, it was like, you typed in an artist and it told you other bands like your query...I lost the link. oops.
Anyway, I discovered a band that goes by "Bolt Thrower" comparable to Amon Amarth in style and vocals, but the throats are a bit deeper and the lyrics a bit less viking-ish.
Anyway--good crack. If you like death, or thrash metal you'd probly dig this.