In the spirit of BMOW's new ADB-USB converter (https://68kmla.org/forums/index.php?/topic/30470-retro-usb-input-converter-for-keyboards-and-mice/) and Themk's follow-up thread about an ADB keyboard-mouse switch (https://68kmla.org/forums/index.php?/topic/30475-adb-keyboard-and-mouse-switch/), I...
I picked up this one over the weekend:
http://www.ebay.com/itm/222486106965
It just arrived today, and it's as advertised: nice bright screen, clear sound, very few blemishes with mild yellowing, booted right up.
The only drawback I found is apparently the floppy drive was replaced at some...