Hey everyone, I know we're all sick and tired of the 'what should I do' kind of threads, so I'll make this brief I'm going to get an MBA 13" for college. I've been tracking my current usage and I know I'm going to need the 4GB upgrade, but I only use 76.25GB of my 1TB harddrive...so needless to say, I am not worried about that. My only concern is with the processor. Right now I'm running on an iMac with a 3.06 GHz Intel Core 2 Duo processor. Am I really going to notice a major difference if I drop down to the 13" base of 1.86GHz? I don't really know enough about computers to know if that really is going to make as much of a difference as it seems like it will. The MBA is going to be my main computer, if that helps. Thanks.