RadioShack.com is offering the Gigaware speaker system for iPod (model no. 40-217) for $69.99, that's a price cut of $110 off the regular price of $179.99.  This offer is good for today (1/14/09) only.  Shipping is $6.05 and sales tax applies for residents of most states.
 

The Gigaware iPod speaker system is small enough (H 5.31" x W 16.5" x D 5.83" ; weight 6.17lbs.) and powerful enough to fill a room with quality audio.  It is compatible with a variety of dockable iPods including the iPod nano and iPod touch.  It can also be connected to other MP3 players via the built-in stereo jack.  It is backed by a 90 day warranty on parts and labor from Gigaware.