RATIONALE: Drugs used in chemotherapy, such as cyclophosphamide and fludarabine, work in different ways to stop tumor cells from dividing so they stop growing or die. Treating a person's lymphocytes in the laboratory and reinfusing them may replace immune cells destroyed by chemotherapy. Vaccines made from peptides may make the body build an immune response to kill tumor cells. Giving a vaccine with Montanide ISA-51 may cause a stronger immune response and kill more tumor cells. Interleukin-2 may stimulate a person's lymphocytes to kill tumor cells.