My wife has a 2012 macbook pro, I'm trying to replace the hard drive with a SSD and I don't know which is a great choice. I don't know anything about SSD's or anything so how would I go about replacing it and re-adding the OS back to it? Also, I've read about people removing the optical drive and placing the original hard drive in there, well u have a couple questions about that too 1. How do i get the hard drive to sit in the optical bay securely? I'd imagine it wouldn't fit. 2. Is there a commercially available enclosure that I can put the optical drive in to use whenever needed? 3. How do i wipe the drive in order to use it simply for storage?