Newegg offers the refurbished Haier 8,000-BTU Portable Air Conditioner, model no. CPB08XCL-LW, for $89.99 with free shipping. That's $15 under our August mention, $160 off list, and the lowest total price we've seen. It features electronic controls, three fan speeds, and 24-hour on/off timer.
It includes a 1-year warranty, but it's unclear who backs it.