CPU: Ryzen 1600X
CPU Cooler: NH-U9DX i4 CPU with AM4 mounting kit
Motherboard: ASUS X370 PRIME PRO
Memory: Kingston Value DDR4 2400MHz 32GB ECC
Video: MSI GeForce GT 710 1GB
Storage Controller: LSI 9211-8i flashed to IT mode
NIC: Intel I350 4-port
Case: Rosewill RSV-L4412
Internal Drive Cage: StarTech BRACKET25X2
PSU: Corsair TX750M
Disks: 2x 512GB SSD Cache array, 10x 2TB WD & Seagate drives
Rosewill case is the cheapest when you factor in the drive bays. The Corsair PSU has enough molex for the drive cages. I got the ASUS board and CPU for 20% off which was a good deal right after release. The ASUS board does also have working ECC memory support.