God, now I'm thinking about it, a number of other albums spring to mind:
Scott Walker - Scott Walker: Incredibly, this album was a commercial disappointment. With masterpieces like Duchess, Angels of Ashes and Rhymes of Goodbye, it's hard to understand why.
Talk Talk - Spirit of Eden: Timeless in the sense that it sounds like it could've been released last year. An 80's album that in no way sounds like an 80's album.
Talking Heads - Fear of Music: Brian Eno's influence can really be felt on this one, and that's never a bad thing.
Brian Eno - Here Come The Warm Jets: I love just about everything I've heard by Eno, but this one just shades Another Green World as my favourite.
Roxy Music - Country Life: A Really Good Time, Prairie Rose, Out of The Blue. All classics.
Radiohead - Kid A: Many will opt for Ok Computer, but I think this one was more daring, and has such a comforting/disquieting feel to it.
Peter Gabriel - Passion: Awesome soundtrack; usually find myself mouth-breathing while listening to this one.
Tindersticks - Tindersticks (second album): I remember hearing Tiny Tears on The Sopranos and thinking I needed to hear more of these guys. Thankfully I did.
Stevie Wonder - Innervisions: It's just all so effortlessly genius. Stevie Wonder is the like the Paul Scholes of music.
Ween - Chocolate and Cheese: It's like listening to a really awesome mix tape put together by Dean and Gene Ween. Buenos Tardes Amigos, Freedom of '76 and Roses are Free are standouts.