I have two up on eBay right now, near-mint in box with all the original papers. They're for the Super Famicom/SNES. The auctions end tomorrow afternoon.
Tenchi Muyo! Game-Hen (Banpresto)
http://cgi.ebay.com/ws/eBayISAPI.dll...tem=1944768616
Currently at $15.50
Dark Half (Enix --just merged with Squaresoft)
http://cgi.ebay.com/ws/eBayISAPI.dll...tem=1944769591
Currently at $1
American SNES consoles *can* play these-- you just need a pair of pliers to remove the two plastic tabs inside the cartridge slot that keep the longer SFC carts from going in all the way.