I was looking at buying a refurb iMac from Apple, but as doing so throws away BTO options, I'd be getting a ~1 TB drive with it. What does it take to get a SSD installed without voiding the warranty? Can I just pick up any old SATA SSD off of NewEgg? And if I can't do it myself without voiding the warranty...Apple just opened a new Apple Store five minutes from my house. Can the Genius Bar do it for me, and how much of a fee should I be expecting?