I'm about to make a huge transition from the PC world to the Mac world. I have always worked with both systems in my work field. But this will be the first time ever that a Mac will be my main workstation. I'm in the process of ordering the new iMac 5k with i7, 16gb ram, M295x, 512 GB SSD. I currently have about 12TB on an NTFS RAID 1 file server that is half full. I would like to copy the data onto a new storage device to be available at all times via Thunderbolt 2.0 on the new iMac. I plan on keeping the NTFS file server for weekly backups. I would like to purchase a 4 bay storage device that has thunderbolt 2.0 with support for at least RAID 0 and 1. I'm thinking of adding 4x6TB in it for a total of 24TB to be on RAID 1 for an actual size of 12TB. Any recommendations for a storage device that fits my needs will be greatly appreciated. I'm considering these two options: AKiTiO Thunder2 Quad OWC ThunderBay 4 Thank you very much in advance.