Here are some virus free mirror sites to help out with the millions of people downloading WotLK content:
Patch File Part 1
2.4.3 to 3.0.1Place the downloaded file in the directory C:\Program Files\World of Warcraft\Updates\WoW-2.4.3-to-3.0.1-TBC-USMX-Update\
PC version:
FileFront.com RapidShare.com MegaUpload.com Allvatar.com
Mac version: FileFront.com RapidShare.com MegaUpload.com Allvatar.com
EU PC version: FileFront.com
EU Mac version: FileFront.com
Patch File Part 2
3.0.1 to 3.0.2Place the download file in the directory C:\Program Files\World of Warcraft\Updates\WoW-3.0.1-to-3.0.2-Update\
PC version:
RapidShare.com Arakkoa.com Allvatar.com
Mac version: RapidShare.com Arakkoa.com Allvatar.com
EU PC version: RapidShare.com
EU Mac version: RapidShare.com
Patch File Part 3
3.0.1 to 3.0.2Place the download file in the directory C:\Program Files\World of Warcraft\Updates\WoW-3.0.1-to-3.0.2-Update\
PC version:
RapidShare.com Arakkoa.com Allvatar.com
Mac version: RapidShare.com Arakkkoa.com Allvatar.com
EU PC version: RapidShare.com
EU Mac version: RapidShare.com
Vista users should download the patches to the following folder(s):C:\Users\Public\Documents\World of Warcraft\Updates\
or
C:\Users\Public\Documents\Blizzard Entertainment\World of Warcraft\Updates
The World of Warcraft folder will already be created from previous patches, so just find the correct path, and create 2 folders inside the Updates folder with the names
WoW-2.4.3-to-3.0.1-TBC-USMX-Update
and
WoW-3.0.1-to-3.0.2-Update
Save the 1st patch into the folder with the first name, and save the other 3 patch pieces into the 2nd folder.