Not following any of this, I'm afraid. But after checking the OP, I've downloaded the approp program.![]()
Welcome to the team!!

Well, I wanted to get new 9600GSO's from EVGA to allow for step up, buy buying them off Ebay would ruin that plan.
By the looks of it though, a pair of GTS 250's on a celeron-powered board is probably the most energy efficient design now. 240 watts for roughly 13000 PPD.
Are there celeron-capable boards that have PCIe-X16 slots on them (particularly doublewide ones)? And why would buying them off Ebay ruin the plan?
By the way, the kill-a-watt on my foldgarden system is showing ~460W usage, drawing about 4 Amps.