Melphalan, Etopophos and carboplatin:Day -8, -7, -6, -5: Melphalan 45 mg/m2 IV Day -4: Etopophos 40 mg/kg/day IV Day -4, -3, & -2: Carboplatin (AUC target 4.1) Day 0- infusion of peripheral blood stem cells previously harvested by pheresis.