OUTLINE: Patients receive cyclophosphamide IV over 1 hour, followed by paclitaxel IV over 24 hours on day 1 and filgrastim (G-CSF) subcutaneously beginning on day 3 and continuing through the day prior to the last collection day. Peripheral blood stem cells (PBSC) are collected over 3-5 days. Beginning approximately 21 days following mobilization, patients receive paclitaxel IV over 24 hours on day 1, immediately followed by carboplatin IV over 2 hours and topotecan IV over 24 hours on day 2, then G-CSF subcutaneously beginning on day 4 and continuing until blood counts recover. PBSC are reinfused on day 5. Patients receive 1/3 of PBSC with each course. Treatment repeats every 4 weeks for 3 courses in the absence of unacceptable toxicity. Patients are followed at week 8 after treatment, then every 3 months for 2 years, every 6 months for 2 years, and then annually thereafter.