http://www.usenix.org/events/usenix-win2000/invitedtalks/lucovsky_html/
Quite interesting... 200 engineers, 5 hr build on 486/50 for NT3.1,
1400 engineers, 8 hr build on 4 way PIII Xenon 550 for Win2K..
Interesting reading on their build processes the the rest of their
processes..