Preparation Cook orzo in large pot of boiling salted water until tender but still firm to bite, stirring occasionally. Drain. Rinse under cold water; drain well. Transfer to medium bowl; cool. Whisk vinegar and lemon juice in small bowl; gradually whisk in oil. Pour dressing over orzo. Mix in remaining ingredients. Season to taste with salt and pepper. (Can be made 2 hours ahead. Let stand at room temperature. Stir before serving.)
Preparation Cook orzo in large pot of boiling salted water until tender but still firm to bite, stirring occasionally. Drain. Rinse under cold water; drain well. Transfer to medium bowl; cool. Whisk vinegar and lemon juice in small bowl; gradually whisk in oil. Pour dressing over orzo. Mix in remaining ingredients. Season to taste with salt and pepper. (Can be made 2 hours ahead. Let stand at room temperature. Stir before serving.)