What a great post Gordon.
I found the web sites to the Lynx bus and the I-Trolley system.
http://www.golynx.com/
Click on fares and view the maps and schedule times.
http://www.iridetrolley.com/index.html
Going from WDW to USF, you'd have to take 3 busses, but it can be done.
Going to WDW (ticket transportation center) to SWF is, route 50.
This makes it easy for people wanting to visit SWF for a day.
From there, you take route 42 to Wet N Wild, or the I-Trolley.
You're only 1 mile away, you could almost walk.
Route 21 takes you to the USF parking garage after a couple stops.
The only thing is carrying your luggage from the parking garage to the hotel, that would be tuff.
But for $1 and a couple transfers, you can't beat it. An adventure in saving money. They even have an e-mail address so you can send in your request for info and make sure the routes are there.