i just bought this card lately and it really runs so fast especially on Crysis, FallOut 3, Farcry 2 at very high settings without any issues. My board still has 3 vacant SLI slots since it is quad SLI, should I buy another 3 GX2's or GTX 295 to fill up the board? I got the cash already, i just need some tips or recommendations from you guys. Thanks a lot.