Several people have asked me if they could buy the cartridge connector for the 7800 consoles, so I have made those available for everyone, I made 1,000 pcs so there are more than enough for the XM's and plenty of extra's for people who have projects:
http://www.syzygycompany.com/store/index.php?route=product/category&path=63
http://www.syzygycompany.com/store/index.php?route=product/category&path=63