Extreme gamers and hardware enthusiasts are demanding more power from their machines. Quad-core CPUs and multi-GPU setups make for extreme gaming (and extreme heat), and require a solid power supply that can deliver near-nuclear energy for today's demanding number-crunchers.
There are several 1000 Watt power supply units available today to meet the growing need for this extreme hardware. As Uncle Ben said, "with great power comes great responsibility", so you should only trust your expensive components to quality name-brand power supplies. One of the best values you can get today comes from OCZ's ProXstream 1000W power supply, which is one of the most inexpensive Kilowatt units you can buy today, but has the quality innards that let you sleep well at night.