Hi, I've been looking at (and buying) GTX260 on ebay, loads of buy it now at silly prices (Â£150+) but can find for Â£95~100 including postage.
Then again new ones are only Â£110-140 + Â£5~10 delivery. Best I've seen was a "today only" Asus Top with 650,1400,2300 clocks (std 576,1242,2000) for Â£130.
I just got a XFX GTX260 off ebay for Â£97 all in, it's XT version, 621,1350,1000 core/shader/RAM clocks. Not tried much over-clocking yet, but the RAM will run at least 1100, shaders will run upto 1600MHz, good for folding
That 9600GSO looked like bargin, especially if had PC that could take two for big folding. Quick numbers run:
96 x 1700 = 163,200 56%
2 x 163200 = 326,400 112%
128 x 1850 = 236,800 81%
216 x 1350 = 291,600 100%
216 x 1600 = 345,600 119%
Not sure how the ppd/watt stacks up but the ppd/Â£/$ for that ebay item sure can't be betten!
The cooler on that Asus card doesn't look good to me, suspect need high fan speed to keep the card cool.