One additional note to Dick's response. TUG also has a timeshare wanted area. If you know specifically the resort and/or date you want to travel, place a rental wanted ad. I needed an extra unit for a family reunion and posted there; I had several responses within hours! I was able to pick and choose the best location and price. You will need to join to post; a few dollars, but you'll make it back on the rental. If you decide you like the lifestyle, spend a few weeks reading the Tug BBS for an indepth education of what timeshares are all about, especially BEFORE you EVER say yes to a developer sales offer!!!
There are a lot of great resorts in the Orlando area, so pick carefully! Enjoy your vacation...