My multi room systen consists of a JVC Boom Box, sounds decent for 150 clams and can go anywhere there is a plug, and if not use the batteries. Mini systems are OK, just replace the speakers with Axioms for example and it will sound pretty decent. Thats what I will do someday when money isnt so tight. As for the MegaChanger, just make some MP3 discs of all your favorite songs for each room and voila. Just my inner cheapskate method of doing things.

M80ti's, VP150, QS8's