I'm looking to either buy an external HDD or make my own. I'm looking to get a high capacity drive (atleast 500 GB) to backup all my media files. Would you recommend me to buy one or make my own? If buying my own, which hard drive and enclosure? PS.... I've previously made my own external HDD with an old 80 GB HDD from a desktop computer. I put it in a Vantec NexStar 3 enclosure. It works good, but transfer rates for it are quite slow using USB.