After upgrading some of our Macs this year, I've decided to tinker and upgrade our older model Macbook Pro 7,1. Some questions: 1) For RAM, I'm any PC 8500 1066 DDR3 with 204 pin should suffice, I assume. Is it possible (or, advisable) to only add one 4 MB module? In other words, would it run well with a 2 X 4 configuration giving me 6 total MB. 2) For SSDs, do I just pick up any model? Or, is there a laptop specific equivalent? 3) Optical drive is no longer functional. Is it possible to place the SSD into the DVD slot as the boot drive, and use the original HD as s second drive? Any general advice on the above, or any observations on how to best upgrade would be greatly appreciated.