Combine sugar, corn syrup and peanut butter in a pan. Bring to a boil, stirring til smoothly blended. For chewy squares boil for 1 minute. For crisp squares boil for 2-3 minutes. Combine remaining ingredients in a large bowl. Pour syrup over cereal mix and blend well. Turn into a greased 11X15X2 pan . Press down firmly. Cut into squares when cool.