King Crimson: Court of the Crimson King
Pink Floyd: Wish You Were Here and Dark Side of the Moon
Renaissance: Turn of the Cards and Ashes are Burning
Cat Stevens: Tea for the Tillerman (some would argue a bunch of his)
Cowboy Junkies: The Caution Horses
Foreigner: first album
WHo: Who's Next
Deva Premal: The Essence (new age with great female vocalist)