How scary fpr you to go through that. It is a miracle your little girl survived!
My little brother was adopted from Korea. He has Reactive Attachment Disorder due to the neglect that Korean orphanages gave to infants at the time of his adoption. If caught early, it is something that can be worked out, but when he was a child, this disorder did not have a diagnoses or any positive treatment known, so yes, it has been a struggle, but he is still a wonderful part of our family. These are problems that can arise from some adoptions (but certainly not all!)
http://attachment.adoption.com/
There are a LOT of red flags in adoption agencies. Educating yourself is the best way to watch out for scams and potential problems. Here is a link to the transcript for a show Montel Williams had on recently about this. It is VERY informative and is a great resource for when you begin your hunt for an agency.
http://www.montelshow.com/show/detail/5076/
http://transcripts.tv/Welcome.aspx
Also, here are other posts on adoption in Mamasource, some share which agencies they used, and I'm sure many would be happy to assist you:
http://mamasource.com/requests/10877046321122902017/12030...
My friend recently adopted a child from Texas' CPS. She filled out a questionaire that asked what age/race/sex she preferred. She just wanted the child to be younger than her oldest child (7)and the rest didn't matter. She recieved a 2 year old hispanic boy, and he is just the sweetest thing ever.
If you are wanting a caucasion infant, it's a lot tougher, because they are in high demand, but if you are willing to take an older child or a child of any ethnicity, than you have an easier time.
Also, laws about adopting from state to state are very different, and each country has a set of laws that can make the process pretty rough. My one friend adopted internationally (can't remember where) and by the time she had her documents completed, the agency/country took so long approving them, that her documents had expired and she had to start the whole process (and paying for it) all over again. Having a great agency can help you cut through these types of problems.
Good luck, it is really worth it in the end! I have one child and am expecting my second, and I still would love to adopt in the future.