Hi Judy,
http://www.breastcancer.org/cmty_trans_2003_04.html#4
It's a conference with three acknowledged experts on the subject of aromatase inhibitors. I have to confess I'm not very knowledgeable about preventative tx for hormone positive bc, but thought this link might be helpful. After reading through some of the info I found on-line about your diagnosis and proposed tx, it seems that opinions are divided...I hope some who have the same diagnosis as you will post with their opinions and experiences. Keep us posted on your decision.
Love, Lolly