I bought the Wind Waker 2-disc soundtrack from Gamemusic.com for a whopping total of $45.71, received it a couple days ago and I've been listening to it a lot, even while I sleep.
Don't count on there being an "American version" of it cuz Nintendo hardly sells their soundtracks, and as of late the DK64, ZeldaMM, and Paper Mario soundtracks are only available with a subscription to Nintendo Power from their online store. Additionally, their American soundtracks are rarely complete.
I suggest you sign up for Game Music.com's newsletter (which notified me about the WW soundtrack early) and wait for their next batch of the Jp. soundtrack to come in. Hell, check their site everyday for the next few weeks.
(You could try animenation.com, but their prices are comparatively higher, so I refuse to support them)