Pokerkitty, I am so sorry, that really bites. Keeping the positive attitude that you have now is a healer in itself... I don't know how you feel about it, but I will hold you up in my prayers for both your health and for your strength, if you wish! It sounds like your husband is with you all the way and that is wonderful and a world of strength.
My opinion on Bigger Boobs you will love them

and so will every one else you encounter. Then you will find that talking to people in person will a lot of the time be between the other person and your boobs... it's true...
If it is any consolation, and in hopes to calm your fears some, I know two women close in my life that have had this same cancer and both of them are cancer free and fine today. One of them is now Cancer free for four years and the other nine years. So hang in there sweetheart!