Lots and LOTS of manga (not to mention a couple artbooks and an anime DVD). Head on over here to take a gander:
http://cgi6.ebay.com/aw-cgi/eBayISAPI.dll?MfcISAPICommand=ViewListedItems&userid=sonic0083&include=0&since=-1&sort=3&rows=25
http://cgi6.ebay.com/aw-cgi/eBayISAPI.dll?MfcISAPICommand=ViewListedItems&userid=sonic0083&include=0&since=-1&sort=3&rows=25