Patients receive vinorelbine IV over 6-10 minutes and gemcitabine IV over 100 minutes on days 1 and 8. Patients also receive filgrastim (G-CSF) subcutaneously daily beginning on day 9 and continuing for at least 7 days and until blood counts recover. Treatment repeats every 21 days for at least 2 courses in the absence of disease progression or unacceptable toxicity. Patients with responding disease after 2 courses may proceed directly to stem cell transplantation off study OR receive 2 additional courses. Patients with stable disease after 2 courses receive at least 2 additional courses. Patients with continued stable or responding disease (with no disease progression) after 4 courses may continue to receive study treatment for up to 1 year or discontinue study for alternative therapy at the discretion of the treating physician.