Hello, I have some questions regarding older Mac Mini's. I'm looking to add another Mac to my office, and I'd like to get a Mac Mini. My first question is about the hard drive. I've seen many with 500 GB hard drive - I assume they are 5400 RPM but I'm not sure - but seeing as I'd be getting a machine that is a few years old (looking at 2011 and newer) I wouldn't want a spinning hard drive. I'd want to get an internal SSD and upgrade it, even if I'm losing space in the process by getting a smaller SSD. My problem is, I've never done anything like this before. I've seen youtube videos on how to install SSDs in Mac Mini's. My question is (apologies if this is a stupid question) If I take a blank SSD and stick it in a Mac Mini, how would I get a copy of Mac OS X on it? When it boots, would it have an operating system? I feel like this would be not only a good addition to my setup, but also a fun little project since I've never done anything like this.