i managed to acquire a copy of the audiobook last night (such popular things propogate over the internet rather quickly; yes i'll eventually buy a copy).
i'm in the middle of chapter two. it is, as always, engrossing. if you're at all interested, it's worth the effort.
for those of you who've never read a harry potter book, please start from book 1. they are not independent books; it is a single, continuous story, and to properly comprehend it, you can't easily skip around.