HP z620 workstation. Works perfectly, cosmetically decent.

Specs:
* TWO (2x) Intel Xeon E5-2665 (2.4/3.1 GHz) Octa-Core CPUs
* 64GB DDR3 ECC Registered SDRAM
* nVidia Quadro 5000 (2.5GB GDDR5)
* 256GB SSD + two spare caddies
* DVD Writer
* Win 7 Pro