If you are staying in P.B. I would suggest one of these places...they are both on (or above) the water and a short walk from anywhere in P.B. you'd want to go. The gaslamp is great, but a little pricier.
http://www.crystalpier.com/
http://www.beachcottages.com/
http://www.crystalpier.com/
http://www.beachcottages.com/