My favorites, in no particular order...
Not very refined, I agree, but that is not a crime yet
Dredg - El Cielo
Sigur Ros - Agaetis Byrjun
Opeth - Damnation
Pain of Salvation - 12:5
Nightwish - Angels Fall First
Led Zeppelin - Physical Graffiti
Red Hot Chili Peppers - Blood Surgar Sex Magic
The Flower Kings - Unfold the Future
Mogwai - Happy Songs for Happy People
Iron Maiden - Piece of Mind
Pink Floyd - Dark Side of the Moon
Bumblefoot - Uncool
Spock's Beard - Beware of Darkness
Tool - Aenima
Zero 7 - Simple Things
The Amber Light - Goodbye To Dusk, Farewell To Dawn
The Flaming Lips - Soft Bulletin
In Flames - Clayman
The Beatles - Revolver
Joe Satriani - Strange Beautiful Music