Finished? Lucky you... Only at 27% now. I have gone up to 390 KB/s though. Some seem to be even slower... so at least I won't finish last.
I'm getting the x64 version from iso.esd.microsoft.com through a fiber connection at about 90 Mbps... EDIT: finished!
Interestingly, after pressing next, it also started downloading the WCP. Must be an in place upgrade or something. Also, note the key is different.