Melt 6 ounces semi sweet chocolate, and cool to room temperature. Beat the eggs with 3/4 cup butter or margarine, chocolate and confectioners' sugar for a FULL 5 minutes. Mixture will be thick and smooth.
In a separate bowl, beat the peanut butter, 1/4 cup butter, and cream.
Spoon chocolate filling into crust. Swirl peanut butter filling into chocolate filling.
Drizzle remaining 2 oz of melted chocolate on top of pie. Refrigerate for at least 1 hour, and serve.