I have a Macbook Pro 2012 2.3 GHz, and am looking to put my newly-acquired Crucial m4 in place of the HDD, while installing an Optibay (alternatives?) with said HDD. More RAM as well, but that's unrelated and simple. However, I don't know how to make an SSD the primary drive, install an Optibay (not for beginners?), or use a second drive for Home storage etc. I'm new to this whole concept, and just have the SSD for now. Unsure where to go from here. Please help! I do have a 1TB external if that helps, though it does (and will) house my Time Machine.