If you're willing to plow a bit, search "Disney" on iTunes. If you've got an iPhone/some other thingy that can use Aps, download Spotify and deploy it whenever you hear something good on MouseWorld Radio. Happy hunting!
There is a DIS Radio station on iTunes that plays that music. You can't buy the music from the radio station I don't believe, but if you play the station enough it all comes out to basically the same thing. Except the radio is free!
Amazon sells the Animal Kingdom Park Music, Event music and albums with rides. I have many of them and if you are looking for somehing in particular just ask.
My most recent purchase was the Disneyland Paris CD--awesoooommmme!
I know you are looking for Disney music on iTunes, BUT, there is an awesome Disney music radio station that I listen to constantly called Sorcerer Radio (can be found here).
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