You know you have an overpowered computer when you need one of these. It's Thermaltake Technology's new 1,200W power supply, the world's first to have that much juice.
Seriously, you'd need to be running some serious hardware to need that. Is there a setup out there that would really use that much power? Is anyone asking for this at the moment, or is this just a preemptive strike on the inevitable towers with like eight GPUs stuffed into them?