Buying a new monitor

[jayrc]

Hi all, I'm looking to buy an LG 27 inch LCD monitor 1920x1080 rated at 56/75 hz, I've been playing on an 26 in LCD tv 1360x768 rated at 60 hz, in CLOD video settings I have 1920x1080 selected, my question is will the extra 15 hz put more stress on my video card? In my video card settings I have vsync and triple buffering on(GTX 560 ti 1gb) Also what is the 56 hz, haven't seen that before. The reason I want to upgrade is to have better anti aliasing, the pixel size on my tv are bigger than pc monitors and this gives me bad jaggies. I read that monitors are better because the pixels overlap. Thanks Jay