I can beat that! How about four Pentax DSLRs, all on the same table at Columbia Harbour House in the Magic Kingdom, including two red K-x's?
Also a D700 and A700.
This was a meet-up of a few of us from Disboards a couple years ago. Sorry for the bad pic quality; it was from my kid's old Minolta.
I'm heading back in three weeks, so there'll be at least a couple of them there at that point! I have generally seen as many Pentaxes at Disney as Sonys or Olympuses... though Sonys will have probably moved into a clear #3 spot by this time.