First, sorry if this is the wrong forum but it seems to fit. I currently have a 2012 Macbook Air with 128GB SSD. Of course I have out grown it but instead of buying a new computer (not in the budget) I would like to upgrade the hard drive. i am under the assumption that the apple store does not do this, correct? If so I have a few questions 1) where is the best place to purchase 2) how hard are they to install (i would consider myself a 7 on the 1-10 tech savy scale) 3) what should be my biggest concern thanks!