Metal Bands

Epic:

Leaves Eyes - Solemn Sea, Elegy

Nightwish - Nemo, Ghost Love Score

Gothenburg: (A city in Sweden from which the music originated, and a style of it's own)

Dark Tranquillity - Cathode Ray Sunshine, Therin

In Flames - Cloud Connected, The Queiet Place, My Sweet Shadow, Bullet Ride.... too many really, awsome music.

Old School:

Motorhead - No Voices In The Sky, Overkill (AMAZING solo's)

Iron Maiden - Blood Brothers, No More Lies, The Clansman: Live (the album version, sung by their temporary vocalist Blaze Baily, is ruined by his awful vocals).

Black Metal:

Cradle of Filth - Abstinth With Faust, Nimphetamine (fix)

Dimmu Borgir - Progenies of the Great Apocalypse, Blood Hunger Doctrine

Death Metal:

(epic death metal actually) Amon Amarth - Thousand Years of Opression, And Soon The World Will Cease To Be, Across The Rainbow Bridge

Slayer - Entire "God Hates Us All" album (slayer is normally thrash, but this is more death metal).

Thrash Metal:

Slayer - Raining Blood, Angel Of Death, Divine Intervention

Megadeth - Into The Lungs Of Hell, Countdown to Extinction

Melodic/Orchestral/Power Metal:

Rammstein - Mein Herz Brennt (The entire "mutter" album is brilliant)

Industrial Metal:

Rammstein - Engel

There's my suggestions.