The download sites I tried to get this from were really slow and Blizzard's downloader sucks ass because it used up all my upstream bw which choked my downloads.
Anyway, decided to mirror the client onto my site which should (hopefully) be faster than the mainstream download sites, I haven't checked the file for integrity but it SHOULD work. If anyone has the CRC/MD5 and wants to post it here I'll SSH in and check.
If you want to wait till integrity is verified, (assuming noone posts the CRC/MD5 beforehand), I'll be downloading it tomorrow morning and probably testing it tomorrow afternoon when I get back from the city (I'll be out most of the day tomorrow).
Mirrored from: aDownOne: Downloads
Link:
http://www.cypherdev.net/WoW/WotLK-Beta-3.0.1-enUS.zip