Because i want to upgrade my work PC (I do 3D solids), it gives me a perfect excuse to upgrade my FSX rig, so i am going to move my i7-950 + m/b over to my work PC and put a i7-2600K sysem into my FSX rig. Here's where i don't know what would be the best way to go.I have two EVGA-GTX460 Factory overclocked (1024mb x 3800mhz) cards in my existing FSX rig so i really don't want to throw money at a 580 and waste at least 1 perfectly good video card which is not that far behind later cards. In other words a lot more money (wasted and spent) for how much more gain?I have also read (since a hasty purchase) that 2 cards + SLI really doesn't do much for FSX (Am i right?).So i am wondering, do i:A) Move one card over to my work PC (It can only help my 3D work) OrKeep both for my FSX rig. I have a 1024mb GT9500 in my work PC which has been handling things pretty well for the last two years.Any advice and/or comments would be welome.

Edit. The 3800mhz is the memory clock. The GPU clock is 763mhz.