The Expanded Access Program (EAP)(protocol number MOZ00607) is an open label study intended to provide access to plerixafor for patients with non-Hodgkin's Lymphoma, Hodgkin's Disease, or Multiple Myeloma who are to receive treatment with an autologous hematopoietic stem cell transplant. Patients who have previously failed stem cell mobilization attempts or who have previously received an autologous or allogeneic stem cell transplant are not eligible to enroll in this program. The standard of care regimen for stem cell mobilization includes a growth factor, G-CSF, to increase peripheral blood stem cells. Plerixafor is given on the evening prior to doses of standard treatment with G-CSF. The combination of G-CSF and plerixafor has the potential to increase the number of circulating stem cells. The stem cells develop into specialized white blood cells and platelets that are necessary for immune system function and normal blood clotting. The stem cells are removed by a process called apheresis, in which blood is drawn from the patient, the stem cells are separated from the plasma, and the plasma is returned to the patient. The separated stem cells are frozen, similar to the blood banking process. The patient then receives chemotherapy according to the institutional standard. After chemotherapy, stem cell transplant is intended to replenish cells in the bone marrow that may be destroyed by chemotherapy.