Please excuse me if this has been asked and answered countless times before. But what sort of gaming performance can one actually expect from the current baseline version of this machine? And yes, I am fully aware that it is not a gaming powerhouse and is not for serious gamers, but alas, the 15" models are out of my price range and my main purpose for considering one is not gaming. I am merely curious how well if can handle the odd game here and there, especially as I have a few games on Steam that are supposed to work on Windows and Mac OS. How well does Civ 5 run, for example? I notice that the HD 3000 is on the list of supported cards at least. Thanks in advance.