Hubs, my prayers will be with you (& your hubby) tomorrow. I'm sure he is feeling pretty much as anxious as you are. You've done all that you can to get to this point, now it's time to leave it in God's hands. He will guide the surgeon's hands.
Good decision hubs 3 hours to go, I hope you're getting some sleep now.. Just think about it, after all the surgeries you have been through, this should be the last one, after which, you would have acheived everything you have worked so hard for! I remember being this anxious before my WLS, but now, I feel like it's the best thing I have ever done..
My prayers to you hubs, just like loodie said, God will guide the surgeon's hands..