Boy, my standards seem to be doing me no favors. Love many tracks on nearly all of the albums suggested, but I don't think there's a single one (save maybe Abbey Road) I'd listen to straight through. I'll just go ahead and say it: don't think I've encountered an album I'd consider perfect. Not by a very, very long shot.
Now that you've got an ipod, you may well realize that the only thing close to a "perfect" album is the playlist that suits your fancy, stringing the high points together just so from many, many albums.
Near-complete non sequiter -- reminds me of a Danish fellow named Donald I met on a train when I was but a wee lad who explained that, as swell as it was living all over the world, in the end it renders you somewhat of a permanent nomad. Comes the point where no one country is "home" save the pastiche compiled of the best parts of many places within the four walls of your house. There's a lot of truth in that. And, have to say, feel much the same way about music. The only approximation of perfect is borrowed bits from all over. The real value of the ipod is making that whole process fantastically easy. Or, maybe it's just me.