I'm a light gamer and recently got a new video card (7800 GS) for an older AGP-based system. I've only got a 350 Antec PSU in there now. I really need something larger. Since I'm a computer tech, I have a bunch of new 350Watt PSU's. Is there any way to hook up more than one PSU to the same machine for purposes of powering certain periph devices like a graphics card? Ideally, I'd like to get it on a switch so I could turn it on only when I'm gaming, etc. There is surprisingly little information out there about this despite the high cost of high wattage PSU's. TIA for any help!