*nods* I bought the prequel soundtracks as well, though I thoroughly dislike the movies themselves. In my opinion, the music is the only element of the PT which is up to par with (and sometimes even eclipses) that of the OT. And like Sky said, that's especially to Williams' credit when you consider what lousy material he had to work with this time around.
I'm still trying to get the soundtrack preview page to load properly. Thus far, no luck. If it's any good I might consider buying the soundtrack, though I won't buy the "movie" until purgatory freezes over. Just because it's not by John Williams doesn't necessarily mean the soundtrack will suck. I really enjoy the Shadows of the Empire soundtrack, and that's not by Williams either.
Of course, seeing as how the preview page is still being beligerent and thus I haven't had a chance to hear any of it yet, I can't say for certain one way or another.
EDIT: Ok, finally got the preview to work. Personally, I kinda like it. It doesn't really feel like a Star Wars soundtrack, but then again it's not for a real Star Wars movie anyway. My prediction: the soundtrack will turn out to be pretty good though the movie itself will blow chunks royally. (Wow, just like the PT!)