I have been researching mastectomy vs. lumpectomy and have come to the conclusion that for me, lumpectomy is the way to go.  The reoccurence rate is marginally if at all more than mastectomy and with my doctor's credentials and studies, I think I am in good hands.  I had to let my school know that I wouldn't be able to work, kind of sad because I really do love working there.  My Principal assured me that if I want to come back I will be able to, so that's reassuring.  I guess the countdown has begun.