PATIENT CHARACTERISTICS: Age: 18 to 64 Performance status: Zubrod 0 or 1 Hematopoietic: ANC at least 1,500 Platelets at least 140,000 Hb at least 10 g/dl Hepatic: Bilirubin less than 1.5 mg/dl (26 micromoles/liter) SGOT less than 4 x normal Renal: Creatinine less than 1.5 mg/dl (133 micromoles/liter) Cardiovascular: LVEF greater than 50% No life-threatening arrhythmia by EKG No uncontrolled hypertension Pulmonary: FEV, FVC, and DLCO greater than 50% of predicted Other: No uncontrolled diabetes No other uncontrolled medical condition No history of second malignancy except: Nonmelanomatous skin cancer Carcinoma in situ Effective contraception required of fertile women