Be sure that you want to live IN FLORIDA and not just "near Disney." The thrill of going to theme parks wears off quickly and then you're just living your life.
I honestly think it would be a mistake to move to Orlando just to be closer to Mickey. It is nice to live near the parks!!! But it's not like being on vacation or being a CP kid. It is regular life, in a place that has hot, humid, rainy summers and fires in the winter. There are tolls to be paid on all the highways except I-4 (and they're constantly threatening to add tolls there, too.) Car insurance is wacky-ridiculous. And, again, the summers get rough.
If you don't live a decent distance from the parks, you are constantly - all of your life - dealing with tourist traffic and stores that have merchandise catered to tourists.
Just be sure.
And then do it!!