TechDealsNow via eBay offers the refurbished Dell Optiplex GX745 Pentium Dual-Core 3.4GHz Desktop PC (no monitor), model no. GX620DT-PD30-MAR-2R, for $169.99 with free shipping. That's a $5 drop from two weeks ago, $100 off, and the lowest total price we've seen. Features include an Intel Pentium D 3.4GHz dual-core processor, 4GB RAM, 80GB hard drive, DVD-ROM drive, Gigabit Ethernet, and Windows 7 Professional 64-bit.

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