Antec NeoHE High Effecientcy. 550 Watts tested at 50 Deg C. most PSUs are rated at max wattage at 20 Deg C, a temperature that is unotainable in most high performance PCs. Depending on what u run inside the case, this could be overkill. I plan to use this PSU to run: AMD FX-60, 4GB RAM, 8 SATA HDDs, 2 DVDRW+- burners, 2 7900GTs and a TV Tuner to boot. Average systems need less. good brands are Antec and PC Power and Cooling, though the latter is really expensive. BTW, u get better deals at
www.zipzoomfly.com - same or lower prices than newegg, and most, if not all of their products come with free shipping.