Prepare bread salad: Combine corn and 1/2 cup water in a small saucepan, and bring to a boil. Reduce heat, and simmer 10 minutes or until the corn is tender. Drain well.
Preheat broiler. Combine bread cubes and garlic in a medium bowl; toss well to coat. Arrange bread cubes on a jelly-roll pan, and broil 5 minutes or until lightly browned, stirring once.
Prepare vinaigrette: Combine vinegar and next 5 ingredients (vinegar through black pepper) in a large bowl. Add corn and remaining ingredients. Add bread cubes, and toss gently. Serve immediately.