heh. My room stays a toasty 85 Deg F in the summer with AC on because of my 7 machines that stay on (PowerMac G4, PowerMac G3, Server, 2 laptops, PM 7200 and a Pentium III dell) all the time. I use all of them daily (hard to believe) because I do a lot of work.
During the winter, it may go down to 80 degrees, but I have to close the heater vent in the room.
My electic bill is $350/mo
I pay for 1/3 of it.