I just put my copies of Marvel vs. Capcom 2 and Marvel vs. Capcom: Clash of the Super Heroes for Dreamcast up on ebay. They are in great condition and include everything. Let me know if you have any questions. Reserve is set low.
Marvel vs. Capcom 2
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=110155003540
Marvel vs. Capcom: Clash of the Super Heroes
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=110155005194
Marvel vs. Capcom 2
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=110155003540
Marvel vs. Capcom: Clash of the Super Heroes
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=110155005194