The purpose of this study is to find out what effect the postoperative combination of therapies: trastuzumab (herceptin) and paclitaxel (taxol) will have on breast cancer recurrence. A combination of trastuzuamb and chemotherapy has been used in women with node positive and high risk node negative disease. This tests utilizes a well tolerated regimen of weekly paclitaxel and trastuzumab in women with T1, node negative tumors that are HER2 positive. We would like to determine how effective this drug combination is when used in women with early stage breast cancer, as well as to better define the side effects of this treatment.