My build :
i7 920 D0 2.67ghz (stock) / 3.987 (Overclocked) Socket 1366
EVGA GTX 275 SC (Stock)
Asus P6T WS PRO : Pci-E 2.0 x 2 Sata 3gbs SAS
Corsair HX 1000w
Corsair H50
Corsair Dominator ddr3 2000mhz triple channel 12gig
SSD Hyper-X 120gig
WD 1.5tb
Blackmagic intensity pro
etc
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My plan :
Get a new EVGA GTX 660 ti ftw 3gb and put my olg EVGA GTX as Phys-X dedicated card in my second Pci-E 2.0 after i rma it because i think my gtx 275 sc have somes issues with phys-x for now. Getting 1 shipping for both.
My worries :
1. Put an Pci-E 3.0 in a Pci-E 2.0. What kind of loss in performance i can expect ? The boost i will gain ?

2. The price still high for now. Can we expect some deals soon ?

3. Step-Up program 90 days. I can expect a new GTX 700 series coming in 89 days ?

4. Can i put my gtx 275sc in dedicated Phys-X card ?