Well, We are in the land of Mickey so LOTS to do in Orlando:

Besides the obvious Disneyworld, there are tons of other fun attractions for both young and old!

The following is the official Orlando Tourism website, with all the information you need on enjoying all that the city I call home has to offer.
http://www.orlandoinfo.com/

a few suggestions:
- Wet N Wild is a must for fun on a budget
- Disney's Blizzard Beach is pretty awesome
- Wonderworks was a fun learning experience. You at least have to drive by to observe the beautiful architecture
- The Fun Spot is amazing for go-carts and there is miniature golf on every corner
- CityWalk has pretty decent night-life (not up to NYC standards but a nice touristy nite-life)