Check the map I posted in the maps thread. From SE Florida, just come up the turnpike (it goes within a mile or less of the chain of lakes) and get off at the Hwy 192 / kissimmee St. Cloud exit. head EAST from there, and just on the edge of St. Cloud, find a road that heads south. I forget the name of the road, but it transforms into Canoe Creek Road. The Lake Cypress fish camp is just off that road, and a little further south the Overstreet Landing Fish camp is just off that road.
Other options are to get on Hwy 60, come actoss the south end of the lake, and launch at Thomas Landing.
Camp Mack will be a bit of a chore for you to get to from that direction I think.
Check the maps, and also check the Airboat Directory
http://www.airboatdirectory.com/cgi-bin ... n.cgi?id=1 to see the websites and phone numbers and addresses of these places.
I wish I had more time to find that info for ya... maybe in a little while later this afternoon.
matt.