Hi Andrew,
I'm in the Tampa area so I can't really speak for Orlando but I do suggest you check out the following:
http://www.orlandoinfo.comIf you have time, have them send you that discount card. I've heard that it is really good.
I checked the site out and there is a part where you can put the exact dates your going to be in the area and you can check off what your interested in--theater being one of the things you can check off. It will tell you what is available during that time. It's a nice site with lots of good info.
Hope this helps some. Have a GREAT time while here in Florida!
D