Preheat oven to 350°. In a large bowl, cream butter and sugars until light and fluffy, 5-7 minutes. Beat in eggs and vanilla. In another bowl, whisk flour, baking powder, baking soda and salt; gradually beat into creamed mixture. Stir in remaining ingredients., Shape 1/4 cupfuls of dough into balls; place 3 in. apart on ungreased baking sheets. Bake 12-14 minutes or until golden brown. Remove from pans to wire racks to cool.