Done lots of homework re these 2 machines and it's narrowed down to the Drobo 4-bay DR04DD10 or the 2-bay Synology DS212j versions. Application: I'm attaching it to my 2TB Apple TC as dedicated media storage for iTunes across my network. I will have iTunes running on my iMac 24/7 so it will act as my "server" so basically I just need large storage. I currently use my TC for this purpose but have hit my 2TB limit and need to expand so I will transfer all my media onto either of these units and leave the TC for Time machine backups only. I want to use RAID 5 or SHR (I think is the best all around option for my redundancy needs) on the Synology or obviously the proprietary Drobo RAID 5. I want a worry-free, user friendly, idiot-proof way to expand my storage while still being able to view it as "one large disk" with redundancy backup AND be able to copy files to an EXTERNAL HDD for off-site storage as a "disaster backup" Note: I do not need any more than 6TBs of storage for right now, this will be plenty sufficient for at least the next couple of years Questions: 1-Synology or Drobo?? 2-If Synology-which configuration? RAID 5 standard or SHR? 3-Given my use of the device..any personal recommendations? personal experiences? Thanks very much for your help and opinions!!!