+1First, how old are you? That will decide what is required in Florida.
Secondly, take the MSF first. Motorcycle riding is NOT for everyone that thinks it is cool and dreams about it. And this is the best way to find that out.
Third, After passing said MSF course, then look for a bike. And, as was stated above, used is usually the best way to go. And one that is not inherently super fast.
Fourth, I am a firm believer in wearing all the gear all the time (except when going to the bathroom, unless a$$less chaps are worn).