This is the start of a NAS build. I was originally going to buy one from Amazon, I was looking at a Synology, but after doing a ton of research I decided I could have a better/faster/cheaper solution if I just built a system and installed FreeNAS.
This is currently up and running with a link aggregation. The setup is only 2 (1 TB) drives in a RAID 1. In the future I plan on adding more drives but due to cost and at the moment no need for the extra space I've backed off on the drives.
I still have some tweaking to do but mostly with my router so I can access the data from outside my network. I am trying to setup an icloud system as well. Over all I am pretty pleased with this.