This is an investigational study. Avastin™, erlotinib, cetuximab, trastuzumab, and lapatinib are all FDA approved and commercially available. Avastin™ is FDA approved for the treatment of colorectal cancer and lung cancer. Erlotinib is FDA approved for the treatment of lung cancer and pancreatic cancer. Cetuximab is FDA approved for the treatment of colorectal cancer and cancer of the head and neck. Trastuzumab is FDA approved for the treatment of breast cancer. Lapatinib is FDA approved for the treatment of breast cancer. The use of these drugs together is investigational and authorized for use in research only.