There is a problem with the Blizzard Dl'er. For example, I was done downloading, had played my fill of WoW that evening, so I loaded the Dl'er back up to UL the file to as many people as possible. Whats the problem you ask? The whole night I only uploaded like 19MB, and I can upload up to speeds of 50 kb/sec. That inn my opinion is plain wrong. I know out there, someone had to need those files, and could have used the bandwith. The old downloader used to allow me to pull speeds up to 100kb/sec dl'ing. That was on stress test Beta, I'm pretty sure that happened. At any rate, there wasn't much more i could do to help you all get it any faster and I tried to help. Hopefully Blizzard takes a look at it, and modifes the code to take advantage of generous Uploaders.
R,
nacho