I like the size of the 15inch. You won't talk me in to the 17inch. Here are the questions: Is the faster processor really worth the money? Do I upgrade the RAM through Apple? Or is it still easier and cheaper to do it myself later? (Its been a while since I bought a new computer) I assume the SSD is worth it? Most importantly- HiRes Glossy or HiRes AntiGlare- and WHY. Thanks!