Hi,
just a different option.
if you're only after backing tracks
( midifiles, mp3's etc ) and you you're not actually wanting to play accompaniment in real time, another option could be software
ie
Band in a Box http://www.pgmusic.com/
Jammer Pro 6 http://www.soundtrek.com/content/modules.php?name=Content&pa=showpage&pid=23

You could create arrangements & play along with your piano ( acoustic??)
(Demo's available)
best wishes
Rikki

[QUOTE]Originally posted by Jinks:
[B]