Family is what you make it, not what you are born into. It has been my experience that a piece mealed family is far more valuable in the long run than a traditional family. In fact it becomes more meaningful and close knit.
Families that one is born into already hold prejudice, ideals and opinions. A family that is chosen of friends is one that can be related specifically to personal ideals. A created family such as this is destinded to remain strong for along time. Bonds are created based on passion rather than the idea that blood forces you to tolerate potentially ignorant point of view.
In my case, I was born into a very racially intolerant family. When it came time for my wife and I to adopt, we chose to adopt trans-racially. This action segregated my wife and I from my birth family. We decided to sever all ties so that our children could experience a prejudice free childhood. The realazation that a child is adopted is difficult enough to adjust to, let alone trying to understand your grandparents have trouble accepting ethnic background.
I am proud of my family. My wife and I have given our children a chance to start with a clean slate. They can make their own choices about people based on personality rather than race. My can children can grow proudly as they enter into the world with heads held high, knowing they are responsible for their values. It is my hope that they cherish our decision to adopt.