Stuck on which MacBook pro is best suited for me to purchase... My 4 options right now is the 13" m313ll, m314ll or 15" m318ll, m322ll? My main uses for it will be for Photoshop and Illustrator for my silkscreening business Other uses will be heavy iPhoto and iMovie Can video encoding and heavy CS5 master uses be handled with the 13"? Or do I jump to at least the 318? Because if the 13" can handle my demands without lag, I'm cool with that... Thanks everyone!