Other World Computers offers the open-box Apple Mac Pro Intel Xeon 6-Core 3.5GHz Workstation
, model no. MD878LL/A, for $3,059
with free shipping
. That's $340 under our mention of a refurb from June and the lowest total price we've seen. (It's $640 under the best price we could find for a factory-sealed unit.) It features an Intel Xeon E5 3.5GHz 6-core processor, 16GB RAM, 512GB SSD, dual AMD FirePro D300 2GB video cards, 802.11ac wireless, Gigabit Ethernet, Bluetooth 4.0, six miniDisplayport outputs, one HDMI output, and OSX 10.9 (Mavericks). A 1-year Apple warranty applies (the same as new units).