Welcome to PB posting. Glad to have you aboard.
Much good info above and in the archives (frequently ask questions).
Given your general location will you have ground water intrusion (possible saltwater)? That could be an issue if deep in the coastal plain.
FH may or may not be necessary depending on your goals. FH are a good idea and will be helpful in most situations like LMB/BG ponds. Here is a link to a location specific resource but use it for general info not specific questions. Ask away !
http://www.lsuagcenter.com/NR/rdonlyres/...3FarmPonds2.pdf 
