I'm typing from a Macbook because my stupid self spilled a drink on my brand new Macbook pro and killed it. My harddrive is still kickin so I want to use it as an external hard drive at the moment. I was looking for external hard drive casings and I realized there was a bunch of different sizes and confusing things so I figured I'd just come here and ask. Do I have to get a certain size casing or a specific one for Mac or anything of the sorts?