I currently have a couple nice items up for auction on eBay:
Commodore 1570 Disk Drive, North American power conversion, with extras:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=110481154885
Commodore 1581 Disk Drive with JiffyDOS installed:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=110481154141
Commodore 1570 Disk Drive, North American power conversion, with extras:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=110481154885
Commodore 1581 Disk Drive with JiffyDOS installed:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=110481154141