A few notable ones that come to mind..

Comus - Diana (First Utterance)
Genesis - Watcher of the Skies (Foxtrot)
Soft Machine - Facelift (Third)
Leaf Hound - Freelance Fiend (Growers of Mushroom)
Anglagard - Earthsmoke (Hybris)
Pure Reason Revolution - Aeropause (The Dark Third)
Tool - Stinkfist (Aenima)
Brother Ape - New Shangri-La (Shangri-La)
Yes - The Gates of Delirium (Relayer)
Toy Matinee - Last Plane Out (Toy Matinee)

"Lightsabre ****sucking Blues"- McLusky. Epic.

Black Sabbath - Black Sabbath
Nirvana - Smells Like Teen Spirit
Slayer - Hell Awaits
The Smashing Pumpkins - Cherub Rock
Tool - Stinkfist

I didn't like the album as much as The Earth Is... or Those Who Tell The Truth, but Birth and Death of the Day off Explosions in the Sky's newest album is an amazing opener. With a lot of post-rock you expect the opening song to build into a powerful ending, but this one hits you right from the beginning. Kind of blew me away the first time I heard it.

I like Intro from Da Drought 3. I like how Wayne uses a Jamaican accent. I wouldn't say Great, though, but good.

bullet for m valentine -the poison

Bombtrack - Rage Against the Machine...great opener
Growing Old - The Origin