Preheat oven broil. Rinse shrimp and let drain in colander. In a
mixing bowl, combine tomoatoes, olive oil, balsamic vinegar, garlic
powder, black pepper, basil and lemon juice. Mix well.
Slice bread 1/4 inch thick, brush with olive oil and toast under
broiler until lightly brown. Remove from oven. Spoon shrimp mixture
on top of toasted bread and serve immediately.