Evaluate Trastuzumab Plus Standard Chemotherapy Given Before Surgery in Breast Cancer Patients With Low HER 2 Expression

100 MG/M2 IV over 30 minutes once a week for 12 weeks

4 MG loading dose followed by 2 MG/KG every week for a total of 12 weeks

60 MG/M2 every two weeks for a total of 4 cycles

600 MG/M2 every 2 weeks for 4 cycles (administered with Doxorubicin above)

"* All patients will receive pegfilgrastim 6.0 mg sc on Day #2 of each doxorubicin/cyclophosphamide neoadjuvant treatment cycle.~* Erythropoetic growth factor support for fatigue/anemia will be allowed at the discretion of the treating physician."

"* After completion of neoadjuvant therapy, patients will proceed with either modified radical mastectomy or lumpectomy.~* All patients with pretreatment lymph node positive disease and positive sentinel lymph node will undergo complete axillary lymph node dissection."