I've just learned that I qualify for the student pricing for CS 5.5 and it should be here by the weekend. I'm concerned about it running smoothly on my early 2011 13" MPB with the i5 chipset. I remember running an older version of CS on my plastic macbook back in '07 or '08 and it was usable, but choppy. Also, at an internship I used CS 4 on the unibody plastic macbook. Would I be better off installing CS 5.5 on my MPB or on my 2011 iMac (also an i5)? Thanks a bunch!