SuperPoop said..
mikeman - The board I'm currently considering is the JP Australia Cruiser. Would that do the job well?
http://jp-australia.com/2013/sup/products/sup-boards/cruiser/
Yes, the JP Cruiser looks fine - especially the nose. I would have a look at a few other boards too. Try and find one that has a raised top deck on the front section of the board. As you will be punching into the chop a lot you want to try and find a board that displaces as much water off the top as possible. If you don't displace the water left+right it will flow onto the area where you stand, also slowing you down.