LYNX bus 50.
You take it from the TTC to downtown Orlando.
I don't have the exact information at my fingertips but I left detailed instructions in a post about a month ago. I'll try to get the link.
We took it on our Seaworld day, and it was slick and cheap. We were lucky though and got a Disney bus to bring us to pick up the line at DTD and only had to wait about 4 minutes for the LYNX. They run every 30 minutes.
Julie