I've gotten my hands on a good deal of the area music from Epcot over the years, but my new obsession is getting a good recording of the queue/area music from the new Test Track. It's classic bright, uplifting, classic Epcot-y music. You can hear it pretty well in this video:
http://www.youtube.com/watch?v=m91M11IKyvQ
http://www.youtube.com/watch?v=m91M11IKyvQ