On auction - Classic Yamaha Digital Synth SY77 Keyboard, Stand, 2 pedals. Modest asking price. Owned by a professional classical composer / musician who has taken great care with it.

Lots of detail including thumbnail images linked to original 10-page Yamaha brochure with specs is available at:
http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=411107220