Go here:
http://files.filefront.com/WoW+Torre.../fileinfo.html

Download that.
REname the beta downloader to WoW-Anythinghereworks-downloader.exe
Place them both in the same folder and run the torrent extractor.

Now you can use your favorite torrent app (I use Vuze ) and download this without tanking your network. I went from a > 9 hour download down to a 1.5 hour download AND I'm still able to surf the web since the blizzard torrent client saturates your upstream and Vuze doesn't.

This also works on patches after you install... Enjoy!