Double tomato bruschetta

1 French baguette
6 roma (plum) tomatoes, chopped
1/2 cup sun-dried tomatoes, packed in oil
3 cloves minced garlic
4 tablespoons olive oil, divided
2 tablespoons balsamic vinegar
1/4 cup fresh basil, stems removed
1/4 teaspoon salt
1/4 teaspoon ground black pepper
2 cups shredded mozzarella cheese

1. Preheat the oven on broiler setting.
2. In a large mixing bowl, combine the roma tomatoes, sun-dried tomatoes, garlic, olive oil, vinegar, basil, salt and pepper. Allow the mixture to sit for 10 minutes.
3. Cut the baguette into 3/4 inch slices. On a baking sheet, arrange the baguette slices in a single layer. Broil for 1 to 2 minutes, until slightly brown.
4. Divide the tomato mixture evenly over the baguette slices. Top the slices with mozzarella cheese.
5. Broil for 5 minutes, or until the cheese is melted.