Meritline offers the refurbished HP Multimedia Stereo Computer Speakers, model no. 630797-001, for $9.99. Coupon code "MLCD18EN" cuts them to $5.99. With free shipping, that's $7 under the lowest total price we could find for a new pair, although we saw a these refurbs for a buck less in July. These USB-powered speakers feature plug and play installation and are compatible with all platforms with a USB port. Coupon expires September 19 or after 300 uses.
Note: No warranty information is provided.