I am selling my practically new DragonCube XBOX-GameCube Adapter for $15 (includes shipping). Add $2.30 if you want Priority Mail (1-2 day). These prices include delivery confirmation (tracking number). I bought it for $25+tax+shipping, and I have only seen it sell as low as $10 for the older/buggier version on eBay and other retailers. I consider this price a bargain because it includes shipping, is in near perfect condition, and is moderately rare/hard-to-find right now.
The adapter allows you to use your PS2 Controller on either the XBOX or GameCube. Used rarely, but I can vouch that it works for both systems. Perfect for the gamer that plays fighting/sports games or wants to add more controllers to their system(s) without paying an absurd amount for another controller. For more information, you can find a description and user reviews here:
http://www.lik-sang.com/info.php?products_id=4115&lsaid=262390
I sold my XBOX and GameCube to save up for the next gen systems, so I don't need this anymore. I can only accept payment thru PayPal, and if that doesnt work for you, we can try to figure it out. Please PM me if you are interested!