Smitty:
When I read your first post I was going to answer, "my boys are mine", adopted or not. But as I read further, I like some of the others who have posted feel that at least you have not yet come to terms with infertility. Once I could say (and believe) that "birthin' a baby doesn't make a mamma" could I pursue the path to adoption. My husband and I have wonderfully open relationships with our two sons birthfamilies and love each and every minute of our phone calls and visits. Both birthmothers have expressed that placing the boys with us was the best decision they have ever made. I truly forget that the boys are adopted. They both know (ages 5 and 4) that my tummy is broken and two very special ladies carried them in their tummies for me.
I feel like I am all over the place here....but I have to agree that you (and maybe your spouse too) should still do some real soul searching before going further. Sure the child was "made" by someone else and yes, it costs a lot of money (up front) but in the end.....you are the parent.....one of the greatest jobs you will ever have in your life.
Please let us know what we can do to help you. You really don't have to go through any of this alone.