Generously grease a 10-inch Bundt pan with softened butter or cooking spray. Sprinkle 1/2 cup finely chopped roasted peanuts in pan. Shake pan in order to coat surface with nuts. In a mixing bowl beat cake and pudding mixes, oil, water and eggs until well blended or approximately four minutes on medium speed. Beat in peanut butter. Pour 1/3 batter into pan; sprinkle with a layer of dates and chocolate chips. Repeat. Pour remaining batter into pan and bake in a preheated 350 degree oven about 55 minutes or until cake tests done. Cool cake in pan for 10 minutes; turn out onto rack and cool. Makes 16 servings.