I had a tubal in Oct. 06 and they had to remove my tube in emergency surgery. But my doc said all you need is one to conceive. We did get pg in May but I m/c'd. But like the other Heather said, if you are doing ivf I don't think that you even need your tubes. Good Luck!
Oh man, I'm so sorry about your ectopic and problems with your tubes. Personally, I don't have any experience with either, but I just wanted to say that I'll be thinking of you and hoping for the best when you go back to your RE!!!
Also, since you're doing IVFs, I don't think it matters whether you have one, two or no tubes...but let's stay positive and hope for the best :-)
Take care!