Who would have thought that 1000 watts would be used in a personal computer system! Well, the fact is, most still don't require this kind of serious power. However, for the serious computer user and especially the hardcore gamer, it most definitely is. With dual NVIDIA SLI and ATI CrossFire setups becoming common place, a high-quality power supply with lots of juice is a necessity. Also, most serious gamers will push their systems to the absolute limit.