thanks, but I've got 2 kilowatts worth of testing gear set up, and probably another 1 kW not currently set up

Makes me want to see pictures of the mad scientist's laboratory...
well here's one of the miners.
http://imgur.com/a/5PEvAthe other one looks similar and is made of 780Ti's
meanwhile the CPUs have been upgraded from low end to high end and extra cooling fans placed on top of the cards.
Christian