PATIENT CHARACTERISTICS: Age: Under 65 Performance status: SWOG 0 or 1 Hematopoietic: Absolute neutrophil count at least 1,500/mm3 Platelet count at least 100,000/mm3 Hemoglobin at least 9.0 g/dL Hepatic: Bilirubin no greater than 2.0 mg/dL ALT/AST no greater than 2 times normal Renal: Creatinine no greater than 1.5 mg/dL OR Creatinine clearance at least 60 mL/min Cardiovascular: Left ventricular ejection fraction at least 45% on MUGA No angina No history of myocardial infarction Exercise stress test without definite ischemia required for: History suggestive of coronary disease Diabetes mellitus Hypertension Age over 50 Pulmonary: FEV1 greater than 60% of predicted or greater than 2.0 liters DLCO greater than 60% of predicted Other: No prior hemorrhagic cystitis No active systemic infection No active CNS disease (e.g., seizures) HIV negative No second malignancy within 2 years except: Localized nonmelanomatous skin cancer Carcinoma in situ of the cervix Not pregnant or nursing