A couple of different downloads, supporting different versions:
- Visual Studio 2005 Team Suite
- Visual Studio 2005 Team Foundation Server
- Visual Studio 2005 Express Editions
The download for the Standard, Professional, and Team Editions (the first link in the list above) is over 400 MB and, from a few posts that I’ve read on the web, can be a bit grueling on the OS. It is probably best to run the update at the end of the day.