I have an old g4 laptop, it has been running iTunes plugged into stereo but now have macmini and airport system to stream music.
It is in pretty good condition, 768mb memory(I think) tiger osx, wifi card fitted. Battery is pretty dire but works fine on charger (connector needs a wiggle sometimes if being used on lap not on desk). Cd drive works fine. Includes neoprene slipcover. £70
I can check out full spec and photo if any interest.
"It's a Sledgehammer; Shocks... Pegs... Lucky!!!"