Update: This bread is not suitable for sandwiches, it's perfect for those that like the crust of an artisian bread, and because of the wet dough besure to place in a bowl or pan to help shape the loaf.
After Mark Bittman's feature in the New York Times (November 8, 2006) on Jim Lahey's no-knead bread, I started the search for a sourdough method. I think Breadtopia has the best. The use of parchment paper or proofing baskets makes it very simple. See Recipe #290761.
I've found it best to proof the starter in the morning (8-10 hours), then make the sponge in the evening, allowing it to sit out overnight (15 - 18 hours) and then baking it the next day. Cooking time indicated does not include proofing time needed.
Even though it's recommended to use a La Cloche or a 6-8 quart dutch oven I've been baking my boule in a 4 qt. cast aluminum dutch oven.