Im looking into buying a monitor for my new 2011 15" and i havent decided between 1920x1080 , 2560x1440 or some other HD resolution. But before i decide on that, how well can my mac manage that high of a resolution? Can my mac handle any of these resolutions? or am i being unrealistic? Could it handle it in clamshell mode only? Im really confused on this! i have the HD glossy on my mac so is x1056 the highest signal i can send out to another monitor or can i handle something higher? Please and thank you!!!!!!