Just a quick note to reference the fact that I have updated my original post about how to download the Visual Studio 2008 and "Rosario" VPC's using a download manager. The changes I made are to reflect the fact that there is a brand new CTP of Visual Studio Team System code name "Rosario" available, and we refreshed the Visual Studio 2008 Beta 2 VPC's to extend the expiration date. Of course Visual Studio 2008 is released now so you may not need the Beta 2 VPC's, but until we get the RTM VPC's online these VPC's can still be useful for training or evaluation purposes. I am told that new VPC's are on their way "very soon" but I don't have more details than that.
So why use a download manager? If you don't already use a download manager, especially for large (ok, ginormous!) downloads such as VPC's then I highly recommend it. Not only is the raw download speed much faster because of the simultaneous connection streams the download manager opens, but it's more robust as well, supporting auto-resume in the event that you lose your original connection. It's also nice to be able to queue multiple downloads at once.
For the full updated instructions please refer to my original post.