Sally,
Even though I just read your posts and profile and have not been on the boards long enough to have the pleasure to correspond with you, it is so obvious how much you are loved and cared for by so many people! Everyone else has already said what I would offer in terms of it being YOUR decision, listening to your heart, praying with an open heart, taking your time to do what you feel is right for you, etc...
The only other thing I would offer is this...I think the reason why WLS is such a huge personal decision and one that is so difficult to make is because once made, it is that decision that we are all reminded of each time we have to make the "little" decisions about making good choices for ourselves (with food, exercise, etc..) This is the mother of all decisions that will forever be remembered as, "If I could go through that, I can make it through anything!" I am pre-op, so I realize I have a lot to learn from those who have gone before me, but this is what helped me to be comfortable with my choice and made it easier to simply pray for God's wisdom and an open heart to hear him. With so many prayers out there for you, you will certainly come out on top! Add one more to the list:) Wishing you peace and good health!