Any Floyd album will do...

Porcupine Tree-Signify or The Sky Moves Sideways

King Crimson- any 'Larks' era album

Jeff Wayne's War Of The Worlds - depends on what yer doing, but it works...BTW: if you have the vinyl copy, the art work is "something else" under the influence.

Oh hell, there are just too many to list them all...

Let us know how it works out