Well seeing as it only came out yesterday (at least where I live, idk about other regions), there wont be a download up anytime soon as far as I know. I started a thread about this in the torrents area of the forums yesterday asking about it and I haven't gotten any responses yet. But if you do buy it it would be great if you could back it up and post a torrent somewhere.
I plan on doing this if there aren't already any torrents for it by September 13th anyways. Keep looking though, and if you wouldn't mind could you let me know if you find one?