Mix crumbs and butter; press onto bottom of 9-inch springform pan.
Beat cream cheese, sugar and vanilla in large bowl with mixer until well blended. Add eggs, 1 at a time, mixing on low speed after each just until blended. Pour over crust.
Bake 40 to 45 min. or until centre is almost set. Run knife around rim of pan to loosen cake; cool before removing rim. Refrigerate 4 hours. Spread caramel topping over cheesecake just before serving. Garnish with chopped chocolate.