PREHEAT oven to 375°F. Mix flour, baking soda and salt; set aside. Beat margarine and sugar in large bowl with electric mixer on medium speed until light and fluffy. Blend in eggs and vanilla. Add flour mixture; beat on low speed until well blended. Stir in chocolate, walnuts and coconut.
DROP heaping tablespoonfuls of dough, 3 inches apart, onto lightly greased baking sheets.
BAKE 10 to 12 min. or until lightly browned around edges. Let stand on baking sheet 1 min. Remove to wire racks; cool completely. Store in tightly covered container at room temperature.