Hey. Hope you can help me. Im searching a good way to store my data (photos (iPhoto-/Aperture-libary), movies (streaming to apple tv through iTunes), documents, ...) + time machine of my macbook air. 1. 2x external HDD 3Tb plus an USB-Hub (approximately 396€) or 2. NAS with two 3Tb internal HDD with RAID1. (Synology DS213j + 2x WD Red = approximately 460€) What would you recommend?