@haitch CPU: 2x Xeon X5650, 6 cores @ 2.66GHz, Turbo 3.06GHz. LGA1366
RAM: 64GB ( 8x8GB 1333MHz )
Trays: 4x 3.5 Trays
PSU: 480Watts
Dell iDRAC6 Enterprise Remote Access
RAID Controller: PERC 6ir RAID
This card supports 2 TB per bay, with this card installed you can support up to 8 TB total. There different RAID for this like the H700, I know this support bigger HDDs but not sure of the max size of the H700. This server has 4 bays. Or you could be a ninja, and make up someway to plug the HDDs in to the 5x SATA port, it supports UEFI.
For a server like that, it would cost about: $400 Plus shipping.
I have a server configured like that above, I use for KVM. Its a pfSense router, Ubuntu server, Ubuntu Desktop, few different types of Linux, and Win 7 Desktop. All in one. I just wish I could figure out how to install macOS.