newegg offers the refurbished HP Compaq Intel Celeron D 2.8GHz Desktop PC
(no monitor), model no. DC7600, for $79.99
with free shipping
. That's $5 under our March mention of a similar PC (which had a larger hard drive) and the lowest total price we've ever seen for a Compaq desktop PC. (It's also a current price low for a refurbished unit by $10.) It features an Intel Celeron D 2.8GHz processor, 1GB RAM, 40GB hard drive, CD-ROM drive, Gigabit Ethernet, and Windows XP Professional. Deal ends January 30.
A 90-day warranty applies, although it's unclear who backs it.