I am debating on purchasing either: 1) Synology DS412+ (or a DS413 but leaning to 412+) OR 2a) Pogoplug v4 (hacking it to run ArchLinux) and purchasing a RAID enclosure to connect to the pogoplug, or 2b) Hooking the RAID enclosure to my router (USB 2.0) I was going to follow this Pogoplug hacking guide (http://archlinuxarm.org/platforms/armv5/pogoplug-series-4) and was leaning towards a SANS DIGITAL TR4UTBPN 4Bay USB 3.0 / eSATA Hardware RAID 5 Tower RAID Enclosure (http://www.newegg.com/Product/Product.aspx?Item=N82E16816111149). I already have 4 Hard drives I picked up on black Friday (Seagate Barracuda 7200 3 TB 7200RPM SATA 6 Gb/s NCQ 64MB Cache 3.5-Inch Internal Bare Drive ST3000DM001). The cost will be significantly more if I choose to go the Synology route ($679) versus the PogoPlug + Raid enclosure ($40 + 179). I would be using the NAS for backup, media streaming, Sabnzbd, sickbeard, etc. It is worth spending the additional ~$400 to get the Synology? Also, if the Pogoplug (or RAID to Router) option is doable, does anyone know if the hard drives will spin down when not in use? I would want them to spin down to increase the lifetime of the drives. I would appreciate any comments/suggestions. Thanks in advance.