I believe the 9600GSO is the same card as the 8800GSO, and should have the same PPD. Nvidia just renamed it so they could keep selling it along with their other 9xxx cards. I have two 8800GS cards, somewhat overclocked, and they get about 3500 PPD each. They’re really nice cards. I use the EVGA Precision software to overclock the cards and set the fan speed to 100%, but they’ll also run relatively cool at default clock and fan speeds.
I don’t do any CPU folding, but I’m guessing the SMP client running on your quad proc should be good for another 2-3K PPD. That will be a nice bump.
3000 ppd for the 9600GSO and 2000 ppd for the SMP.
Not bad for a machine I have $800 in including the 23" monitor, the 9600GSO and a new 500 watt power supply. That (with my current machines)should get me near 60k points/week.
I suppose the kids can do some homework and gaming on it too...