Dont buy into the hype of you need xx hz to game. Everyones eyes are different and what you can see will be a little diff to what others see. For example, if im playing a game, anything above 45fps i can hardly tell the diff between, but get below that number and gaming becomes uncomfortable. Now if i go and lock the fps to cap at 30fps and my vid card has no problem keeping it there, i can play without issues. Just as when i had a crt, i could not stand any refresh rate below 75hz for any res or else i would get head aches or i could see the damn screen jiggling, where as my mom couldnt stand the higher refresh rates as anything above 60hz appeared blurry to her.
With a regular lcd panel 60hz is the max they can produce, with the exception of the new 120hz panels coming out. Since lcd's are not crts and dont paint the screen so many times a second, the hz of the screen dont really mean squat. Each pixel will stay the color it is supposed to be till it needs to be changed, so the lcd doesnt have to change the color of all the pixels on the screen that often. Even with the 60hz cap, that really says that any frame over 60 will not be displayed simply because the screen cant do it. 120hz screens do have their place and will likely be where we go to next, but the only reason 120hz screens are coming out is because of the super large resolutions that are being pushed and ghosting and blurring occur. Just look at the LCD TV market, after a certain resolution and size you start to see the 120hz screens. So unless you plan on having a massive screen and an even more massive vidcard setup to push the frames required, then you dont need the 120hz stuff.