Hi, I could use some advice about how best to setup file-sharing for OS X -- with a backup. I have: 1) 21.5" iMac where I keep all of the videos -- TM backup + SpiderOak Backup 2) 27" iMac where I keep all of the images -- TM backup + SpiderOak Backup 3) Macbook Pro (most data in Dropbox/cloud) I would like to be able to: 1) store the images and the videos one ONE drive (preferably a RAID volume) that is backed up locally and to the cloud (spideroak is what I use currently). 2) access these videos and images from any of the Mac's above (I have full CS6 on these machines -- though I know LR4 will be unhappy on a network). QL Should I buy a mini to use as a server with an external RAID drive? Or should I go with some type of RAID NAS? Q: Can the mini run headless? And would I need to have OS X server or could I just create shared volumes? Thank you in advance for any suggestions!