Chassis: Supermicro CSE-846
PSU: Corsair AX750
Motherboard: Supermicro X8DTN+-F
Processor: 2*Intel Xeon E5620
RAM: 3*4GB + 9*8GB (= 84GB) Samsung ECC RAM
OS: FreeNAS
Disks: 8*3TB NAS disks in RAIDZ2
Storage server, simple as that. Also storing backups of most important machines.