Im wondering if there are any papers, doumentation, or even educated
guesses on hardware requrements in real world. ie, how many servers
(and
what hardware!) would be necessary to support "typical" office use,
for X
number of desktops.

This may be an impossible question to answer, but even taking numbers
from
a makerting type and doubling them would be better then what I have
now,
which is nothing.