Hi Jake,

quoted text
> have a number of rackmount machines of various sorts in service at the 
> moment and, based on the relatively low load on them, am interested in 
> finding equipment that is more optimal from the environmental / 
> consumption point of view.

A shop in Belgium offers this machine:
http://www.ahead-it.be/shop/index.asp?LANG=GB&cat=servers&NR=SCS213

Perhaps it may inspire you.

Bye... Nico