I could list a whole bunch of pink floyd but I think ill let the guy (sorry can't think of your name right now) with the dark side of the moon avatar and the 5000k+posts handle that.
however I can point you in the direction of some other classic rock.
Rush Limelight
Rush Tom Sawyer
Rush 2112
Rush Subdividsions
Rush Fly by night
Rush Freewill
Rush The spirit of Radio
if you like
rush'll do you good
Moody Blues Tuesday Afternoon
Moody Blues Question
Moody Blues Ride My See-Saw
Journey Wheel In the Sky
Journey Seperate Ways
Buffalo Springfield For what it's worth
The Who Baba o'riley
The Who 5:15
The Who Pinball Wizard
The Who Who Are You
The Who Won't get fooled again
The Who Behind Blue Eyes
Led Zepplin Misty Mountian Top
Led Zepplin All Of My love
Led Zepplin Black Dog
Led Zepplin Rock and Roll
Led Zepplin D'yer Mak'er (spelling?)
Led Zepplin Houses Of the Holy
Guns n' Roses Paradise City
Guns n' Roses Sweet child o' mine
there's plenty more, but i think that should hold you for awhile.
