TigerDirect offers the factory-refurbished Logitech S135i Portable Speaker with iPod Dock, model no. 984-000109, for $21.99. With $2.99 for shipping, that's the lowest total price we could find by $6, although it was $4 less two weeks ago. (It's also $26 under the lowest price we could find for a new unit.) This speaker system supports all iPhone and iPod models via dock connectors, as well as other MP3 players via a 3.5mm jack. A 90-day Logitech warranty applies.