Like it says, can I run a FTW +FTW 2 in SLI? Currently the FTW 2 is quite a bit cheaper, by like $60, than the FTW. I already have a FTW, and want to get a second card for SLI.

i7-2600k @4.4ghz(28c idle/62c P95) / Corsair H100
EVGA Z68 FTW / Patriot Black Mamba 16gb @1866
Gigabyte 780ti OC / Corsair HX750
OCZ Vertex3 128gb / Seagate SSHD 7200 1tb
Samsung Spinpoint 1tb / Pioneer BDR-206
Antec 1200 / w/a buttload of fans