MegaMacs offers the refurbished Apple Mac Pro Intel Xeon 8-Core 2.8GHz Workstation, model no. MA970LL/A, for $989.99 plus $2 for shipping. That's the lowest total price we could find for this configuration, although we saw it with more RAM and bigger hard drive in March. It features two Intel Xeon 5400 Series 2.8GHz quad-core processors (eight cores total), 4GB RAM, 250GB hard drive, and dual-layer DVD burner. Deal ends August 28.

Of note, an OS is installed on this system, but it's unclear which OS. A 30-day warranty applies, although it's unclear who backs it.