I just bought a used mac mini to use as a media server and am working at putting all my movies and media on it. I was also going to use it as a wireless backup point for my laptop. But I'm having trouble working out a backup strategy that I don't have to spend a ton of money on. May laptop backup will wirelessly backup onto a 3TB WD MyBook drive. This will be mirrored by software RAID onto a second 3TB drive so I have a semi-redundant backup. I have one each of a 1tb and 500gb externals- these were going to be my media storage drives. I was also planning on purchasing another 1tb drive to use as a mirror of the second 1tb drive to have a redundant backup. But is this really needed? I have a fairly large media library and will probably fill up 1tb easily, and could really use a second one for more storage. So which do you think would be better- having 1tb mirrored (and redundant) storage or 2tb non-mirrored storage? Or should I look into getting dual 2tb or even just getting four 3tb drives and putting the entire setup in a RAID box?