I have several recipes, but the one I got in a recipe exchange a couple years ago has the lowest ratio of bread to crab. Let me know if you'd like any of the others. One of the is from Old Key West at Disney; another is a copycat for the Cheesecake Factory.
Old Bay Crab Cakes
2 slices dried bread, crust removed
milk
1 Tbl Worcestershire Sauce
1 Tbl parsley flakes
1 Tbl baking powder
1 tsp Old Bay Seasoning
¼ tsp salt
1 egg, beaten
1 lb crabmeat
In a bowl, break bread into small pieces & moisten with milk. Add all ingredients except crabmeat & mix lightly. Add crabmeat & combine gently, not breaking up larger pieces of crab. Shape into patties & broil or fry until golden brown on both sides.