Enermax. To be honest, I'm not entirely certain I need the extra power...yet. The video card complains about insufficient power at times, say, when running one of nvidia's demos (Dusk, for example) but not at other times, say, when running 3Dmark. I'll get the pop-up consistently when visiting certain websites too. I have no explanation for that. And the system is completely stable except for this one issue. Weird. Oh well, if the old PSU is still good I'll use it in a secondary system somewhere down the road.