Banana Nut Cheesecake

1 c Chocolate wafer crumbs
1/4 c Margarine, melted
16 oz Cream cheese softened
1/2 c Sugar
1/2 c Mashed ripe bananas
2 lg Eggs
1/4 c Chopped walnuts
1/3 c Milk chocolate chips
1 tb Margarine
2 tb Water Combine crumbs and margarine; press onto the bottom of a 9-inch springform pan. Bake at 350 degrees F., 10 minutes. Combine cream cheese, sugar and banana, mixing at medium speed on electric mixer until well blended.
Add eggs, one at a time, mixing well after each addition.
Stir in walnuts, pour over crust. Bake at 350 degrees F., 40 minutes. Loosen cake from rim;cool before removing rim pf pan. Melt chocolate pieces and margarine with water over low heat, stirring until smooth. Drizzle over cheesecake. Chill.