Grabbed a load of stuff today, but these are the items that have me most curious:

Zelda's Adventure CDI red Demo Disc:



Unreleased wireless trackball controller:



Modified Sega Justifier, used in the creation of the retail Peacemaker gun. There is a cord that runs from the Justifier to a box (hard wired), and then from the box to the 3DO:



No idea at all what these are worth, very difficult to find any info on any of them. Thanks for the help guys!