This is what I've got specced out right now. Would welcome any feedback/suggestions. Note that I've not yet chosen a video card.
http://www.newegg.com/Product/Product.aspx?Item=N82E16819117629
CPU
E5-2620 V4 2.1 GHz
$434
http://www.newegg.com/Product/Product.aspx?Item=N82E16813130927
Motherboard
MSI C236A Workstation LGA 1151 Intel C236 HDMI SATA 6Gb/s USB 3.1 ATX Intel Motherboard
$159
http://www.crucial.com/usa/en/c236a-workstation/CT9032483
$367
memory
http://www.newegg.com/Product/Product.aspx?item=N82E16820147466
Boot drive
M.2 SSD 256GB
$187.95
http://www.newegg.com/Product/Product.aspx?item=N82E16817438055
Power
EVGA SuperNOVA 650 P2 220-P2-0650-X1 80+ PLATINUM 650W
$99
http://www.newegg.com/Product/Product.aspx?Item=N82E16835103099
Fan
$30
http://www.newegg.com/Product/Product.aspx?Item=N82E16811147153
Rosewill CHALLENGER - Black Gaming ATX Mid Tower Computer Case
$50
http://www.newegg.com/Product/Product.aspx?Item=N82E16820147362
SSD
Samsung 850 Pro
$425
TOTAL (so far): $1752
http://www.newegg.com/Product/Product.aspx?Item=N82E16819117629
CPU
E5-2620 V4 2.1 GHz
$434
http://www.newegg.com/Product/Product.aspx?Item=N82E16813130927
Motherboard
MSI C236A Workstation LGA 1151 Intel C236 HDMI SATA 6Gb/s USB 3.1 ATX Intel Motherboard
$159
http://www.crucial.com/usa/en/c236a-workstation/CT9032483
$367
memory
http://www.newegg.com/Product/Product.aspx?item=N82E16820147466
Boot drive
M.2 SSD 256GB
$187.95
http://www.newegg.com/Product/Product.aspx?item=N82E16817438055
Power
EVGA SuperNOVA 650 P2 220-P2-0650-X1 80+ PLATINUM 650W
$99
http://www.newegg.com/Product/Product.aspx?Item=N82E16835103099
Fan
$30
http://www.newegg.com/Product/Product.aspx?Item=N82E16811147153
Rosewill CHALLENGER - Black Gaming ATX Mid Tower Computer Case
$50
http://www.newegg.com/Product/Product.aspx?Item=N82E16820147362
SSD
Samsung 850 Pro
$425
TOTAL (so far): $1752