If you have Utada CDs (both Japanese and English) in good condition with original cases and inserts (Obi is not necessary), and you are willing to trade:
Here is a list of items I have for sale:
http://community.livejournal.com/garagesalejapan/2479586.html
If you do not see anything you like, you can also post your wishlist, and I will see if I have anything on it :)
THANKS!