Today only at MidnightBox.com, click the "Deal 2" tab at the top of the page to find the refurbished Altec Lansing inMotion Portable Speaker for iPod, model no. iM600USB, for $64.95 with $3.99 for shipping. That's $20 under the lowest total price we could find for a new, factory-sealed unit. Features include compatibility with most iPods, speakers with 2" drivers, several iPod dock adapters, and more.
Note that a 30-day warranty applies, although it is unclear who backs it.