Chicken Piccata - one of my favourite mid-week dinners!

4 boneless, skinless chicken breast halves, pounded thin
1/2 cup all-purpose flour
1/4 teaspoon salt
1/4 teaspoon black pepper
2 tablespoons olive oil
1/4 cup butter
1/4 cup dry white wine
1/4 cup chicken broth
2 tablespoons lemon juice
1/4 cup capers, drained