 Treatment: Patients in this study will receive gemcitabine and etanercept. Gemcitabine will be administered through an intravenous infusion weekly for seven weeks followed by one week of rest. Additional treatments with gemcitabine will be given for three weeks followed by one week of rest. Patients will administer etanercept to themselves through a small injection underneath the skin twice each week. Six patients will initially be enrolled in Phase I. If severe side effects appear in at least two patients in Phase I, then additional patients will be enrolled and treated with lower dosages of gemcitabine. When the treatments do not produce unacceptable side effects, the Phase I portion of the study will end and Phase II will begin enrolling patients. Patients in the Phase II portion of the study will also receive gemcitabine and etanercept at the safest dosages identified in Phase I. Several tests and exams will be given throughout both portions of the study to closely monitor patients. Treatments will be discontinued due to disease growth or unacceptable side effects. 