Heat oven to 350º.
Grease bottom only of 8 inch loaf pan.
In bowl, combine flour, sugar, baking powder baking soda and salt; mix well. Stir in cranberries.
In bowl, combine 3/4 cup half-and-half, orange peel and eggs; beat well.
Add half-and-half mixture, melted butter and orange juice to flour mixture; stir until moistened. Pour batter into pan.
Bake at 350º for 50-60 minutes. Cool in pan 10 minutes. Cool 1 hour.
In microwave bowl, combine chocolate and 1 tablespoon half-and-half. Microwave on high for 30 seconds; stir until melted.
With wire whisk, beat in powdered sugar until smooth. (If necessary, add additional half-and-half 1/2 teaspoon at a time until desired consistency.)
Spoon and spread icing over cooled loaf.