Patients with Hodgkin's lymphoma or patients with non-Hodgkin's lymphoma who have exceeded pretransplant radiotherapy limits receive cyclophosphamide IV over 2 hours daily on days -6 through -3, carmustine IV over 1 hour on day -6, and etoposide IV over 4 hours every 12 hours for a total of 6 doses on days -6 through -4. Autologous PBSC are reinfused on day 0. Patients also receive G-CSF IV daily beginning on day 0 and continuing until day 21 or until blood counts recover.