If you think you will like it, get a good bike. I made the mistake of getting a crappy no name aluminum bike, crappy components and after the first group ride, realized I wanted more. I think you will be happy with the Specialized, my husband and I both have one. Great bikes. I think you've got the right plan with the A1A rides. Just watch traffic, assume they don't see you. I also used to ride 441 from west boca all the way to Wellington, nice and open, probably too hot right now. Good luck and if you need anything down this way give me a shout.