Florida Keys

Hello All - just joining the group - we have a Class A and live in the Hudson Valley.  We are planning a trip to Florida in the fall and we're looking for stops along the way.  We don't want to take Rt 95 until we get further south, so we're thinking of taking Rt 84 West to Rt. 81 South.  Any suggestions for stops or sights would be appreciated.  I'm a little nervous about driving the Seven Mile Bridge in the Keys.  Has anyone done it and how was it?  I'm already nervous about it being a windy day