To those who have a Kill-A-Watt or other power monitoring device, have you checked to see what a PC/Server uses? Im thinking along the lines of the servers running CQC or Homeseer and those for Sage TV or other for media - not a power hungry Cray supercomputer.
I don't have a Kill-A-Watt or other device, but newer PCs/Servers are getting more efficient, or can be. However, for HomeSeer I use the HomeTroller 2, that, IIRC, uses about 13 watts.
Kevin