While I do enjoy tall buildings I see how walkable a city is to be far more important, and Orlando needs to be far more walkable, you don't need super tall building for that. You do need density and mix's of types of uses to create a place where people will choose walking and public transit over driving simply because it is easier AND more enjoyable than getting in a car and driving.
I see trends of this happening and hope it continues, you interact with the environment, others, and local businesses far more when walking than you do when driving. Right now I know that South Eola, Thorntan Park, parts of downtown and Winter Park are wonderful for walking in Orlando, there may be more I don't live there yet, but to make a really great city there should be far more areas that people enjoy walking in.