that's some very good tastse mellow mood. you may like the Amon Amarth album "vs. the world", sort of epic/death/power metal (not cradle of filth type singing). though didn't we just have a metal thread? anywhoo, I like:

Amon Amarth - Sweden
Nightwish - Finland
Black Sabbath (not a huge fan, but I like them. and GOD DAMN they were amazing live). - don't know
Iron Maiden - England
Metallica - USA
Megadeth - USA
Slayer - USA
Motorhead - England
AC/DC (old stuff) - Australia/Scotland
Cradle of Filth - England
Dimmu Borgir - Finland
In Flames - Sweden
Dark Tranquility - Sweden
Within Temptation - Holland
Leaves Eyes - Norway
Rammstein - Germany
Megaherz - Germany
Black Label Society - USA
Ozzy Osbourn - England
Distubed - USA
Arch Enemy - Sweden
A Perfect Circle - USA
Pink Floyd - England
Led Zeppelin - USA
Jimi Hendrix - USA
Enforsaken - USA
Hammerfall - Sweden
Edguy - Germany
AFI - USA
Sepultura - Brazil
Iced Earth - USA
Judas Priest - England

(just thought I'd add their nationalities too, for curiosity sake)