Just thought I'd add that on my last venture down there I checked out both Theme Park Connection and the Goodwill store on South Orange Blossom Trail.
First of all, traffic getting in and out of there was murder, both at 6:00 in the evening and at 1:00 on the afternoon on weekdays.
Nothing much to see at the Goodwill. I don't suppose people living in Orlando buy Disney shirts much more than the rest of us.
Theme Park Connection is interesting, but nothing of interest there is cheap. Seems like most of their good stuff goes on eBay.