xl2420t x3 and evga gtx 670 4gb questions

[WarmZie]

Hi there multi monitor veterans

First of would i even get use of 3 120hz monitors running two 670 4gb or would i need more gpu power to even use anything above 60?

Im talking basicly any kind of gaming from skyrim to bf3

Should I instead just stick to 3 60hz monitors with 2ms since this would bring the price down a bunch

[Haldi]

i got two HD7970 i play 5760*1080 with mostly 8xAA and highest quality settings.
Most games are around 40-80 FPS. Skyrim more around 30-60fps.

If you want to reach 120hz you'd have to lower the quality settings and maybe 2x or maximum 4x AA. still no guarantee that will work in all games.
Especially BF3, heard that on big maps with much ppl mostly CPU limit to 60-80 fps!