Ikordesign offers the refurbished Logitech X-530 5.1-Channel PC Multimedia Speaker System, model no. 970114-0403, for $37.99 plus $13.99 for shipping. That's $21 under the lowest total price we could find for a new unit, although we saw this refurb for $10 less six weeks ago (since expired). The X-530 sends 70 watts of total system power to four satellite speakers, one center channel speaker, and a subwoofer.

A 30-day warranty applies, although it's unclear who supports it.