Exploring the option of Domestic Adoption...

Hello, we are permanent residents of US (have to wait one more year to qualify for applying for citizenship) and citizens of India. We are looking into adopting a kid (the sooner the better). As far I know one of us has to be citizens even to start the international adoption process. I am really hoping we could atleast start the process so that by the time we get citizenship, we can get the baby sooner. We have our biological kid, not sure if this is something that would any hindrance. We always wanted to adopt since we were married. It was a good accident (a great one;-)) that we have our daughter. We are also exploring the option of domestic adoption. I am looking for someone who has successfully done domestic adoption of an infant baby.Any input will be of great help.ThanksMahi