to help you out, GTX580 are only bringing $175shipped $225 for 3GB models on the used market.
and even the new tech is inexpensive in the used market, since the 700-series release. i bought
a GTX480 for $125shipped.. you do what you have to do, but the 560/ti just isn't "hot" to slam a
lot of cash to purchase on smallish VRAM. i shutter that my 560ti HAWK is mine for awhile as there
is no way i'd sell it for $100 as that seems to be the "going price".
16 reads and no replies.. just trying to help..