Antec TruePower Quattro 1200W

Although many users are currently looking for smaller power supplies below 500W, there still is a demand for stronger ones, particularly if you are a gamer with Triple-SLI or Quad-Crossfire systems. Those planning on running NVIDIA's next generation "Fermi" will want a fairly beefy PSU, and the same goes for Folding@Home farms where you'd want a lot of stable power. For the upper end PSUs there are a wide range of models, which doesn’t make the purchase decision easy. In addition, these power supplies are usually expensive so you'll want to get the best features and a reliable power supply that can operate even under maximum load and summer temperatures.