PATIENT CHARACTERISTICS: Age: 10 to 55 Performance status: Karnofsky 80-100% Hematopoietic: Absolute neutrophil count greater than 2,000/mm3 Platelet count greater than 150,000/mm3 Hemoglobin greater than 10 g/dL Hepatic: See Disease Characteristics Bilirubin less than 1.5 mg/dL AST and ALT less than 3 times normal Hepatitis B surface antigen negative Negative hepatitis C antigen test required in patients with hepatitis C antibody Renal: Creatinine less than 1.4 mg/dL Creatinine clearance greater than 75 mL/min Cardiovascular: LVEF at least 55% by MUGA or echocardiogram No history of significant cardiac disease Pulmonary: FEV1 greater than 2 liters PaO2 greater than 70 mm Hg on room air PaCO2 less than 42 mm Hg on room air DLCO greater than 60% predicted Other: No hearing loss of greater than 40 decibels HIV negative No organic or psychiatric CNS dysfunction that would preclude study No other medical or psychosocial problems that would place patient at unacceptable risk No history of other malignancy except nonmelanoma skin cancer or carcinoma in situ of the cervix Not pregnant Negative pregnancy test Fertile patients must use effective contraception