If you are looking for campsites here are some details:
Beach View Holiday Park is a nice site located right next the beach
http://www.beachviewholidaypark.co.uk
Self-catering holiday rentals including caravans, luxury lodges and apartments are also available at Beach View:
http://www.beachviewh...ommodation/index.html
The Cakes and Ale is another nice caravan park and camping site although it's not right on the coast:
http://www.cakesandale.net
There are some nice hotels in Aldeburgh (The White Lion, The Brudenell and Wentworth) and Southwold and plenty of cottages and holiday lets in most of the coastal towns and villages. More commercial areas include Lowestoft and Great Yarmouth (these are your typical amusement/arcade British seaside type coastal towns).