uBid has ten of the
refurbed Audiosource AMP100's available for $59 bucks each. This is a great zone 2, background music amp. 50w x 2,
2ohm stable 
, A/B speaker speaker switch, dual autoswitching inputs (one input has priority over the other so you can run two different sources through it).
I put one of these in my friends place and she uses it to run speakers in both her kitchen and bathroom off it at the same time using the A/B switch as a 2 zone selector (A,B,AB). Sorry, these aren't really recomended to use with your mains, but they are great for multizone.
Jack
