Ponte Vedra Beach is very nice. About a month ago I saw a house on the far south side of Pt. Vedra, near St. Augustine, that was going for 470k asking price (he indicated he would haggle, heh). Very nice cement construction, two floors, 4 bedrooms, huge kitchen, etc. Not beach-front property but the compound was across the street from the beach-front houses.
Was an interesting location because it was a great community and only about 2min drive from a new business center being built (Which includes a Publix supermarket, etc etc). Also within 10min drive or so from the interesting St. Augustine touristic area with restaurants, museum, etc.
So you got the quiet of a retirement community but within easy access of a bit of fun.
-Fernando