With the crazy power requirements of dual or even quad graphic card systems, powered with a lot of memory and a very power-demanding CPU you need as much juice as your local substation can kick out.
High-end systems require at least a 600W PSU to run without any troubles.
Corsair to launch PSU lineup
Posted on Tuesday, Jun 20 2006 @ 14:10 CEST by Thomas De Maesschalck
Corsair is keeping somewhat quiet about this but soon we can expect the launch of a Corsair-branded high-end power supply lineup.