Dual Video Cards in Snow Leopard

[proprogrammer]

I have dual Nvidia 9600GT graphic cards. I've tried to write the EFI string for dual cards following digitaldj's guide but with no luck. If someone could write the EFI string for me I would really appreciate it.

Nvidia GeForce 9600GT
512 VRAM
dvi/dvi

PciRoot(0x0)/Pci(0x3,0x0)/Pci(0x0,0x0)/Pci(0x0,0x0)/Pci(0x0,0x0)-graphics card 1
PciRoot(0x0)/Pci(0x3,0x0)/Pci(0x0,0x0)/Pci(0x2,0x0)/Pci(0x0,0x0)-graphics card 2

I'm using Snow Leopard 10.6.2 vanilla install