Iron Maiden - Power Slave
Powerslave is probably my favorite album of all time. I got my first copy when I was like 7 or 8 and I've never gotten sick of it, its amazing. (Favorite songs - Aces high, Powerslave and The Rhyme of the ancient mariner)
Metallica - Master of Puppets
Master of puppets always gets me Pumped up, so if I ever needed workout/rage music this would be good to have. Also Its just a great album; All the songs Kick ass.
(FSs - Disposable Heros and Orion)
Opeth - Orchid
Opeth is a very original metal band, and this is my favorite album by them. There is so much variety in this album.
(FS- Twilight is my robe....this song is amazing from start to finish)