Sharp Portable Speaker system for iPod and MP3 Players $34.99 w/Free Super Saver Shipping at Amazon
 

Sharp i-Elegance Music System [amazon.com] for iPod and MP3 Players $34.99 with free super saver shipping at Amazon.com

Portable folding speaker system with case and AC adapter

Dock charges iPod while playing with AC adapter or four AA batteries. Runs six hours on batteries.

Has audio auxiliary in for laptops or other MP3 players and even has video out jack. (the apple brand video output adapter costs $25 by itself)

Good reviews with most saying excellent sound quality. Unless you need a portable system to be really loud, this looks like the best all around thing out there anywhere near this price range.

Black or Red available for a few more bucks.