In the Nuts and Bolts forum Moving the the Villages part 2 has some information about getting a Florida drivers license.
Go to
http://www.flhsmv.gov/ to see the detailed information.
You will need a Florida driver's license to do a lot of things in Florida. It shows the TV address as your permanent residence so I would do it soon.
There is no written/drivers test required.
And I think the answer is yes for the motorcycle endorsement but I am not sure. Someone that transfered a motorcycle endorsement can tell you better than me.