sue - if it's any help, when my brother adopted his ds, aged 13 months, they had a week of broken nights and then he slept like an angel. Fortunately this happened before my ds was born, otherwise I might have gone round and killed my bro for suggesting that one week of night waking was "terrible"
I will say, though, that he and my SIL adopted two lovely kids within the UK - they were white (and indeed still are!) - only relevant in the light of your earlier remark obviously, not in a 'thank goodness for that' type of way.
In terms of trauma, these two little ones have been through a fairly rough time although nothing like what you might expect abroad. My bro and SIL do have a tendency to assume that whatever toddler trauma they are having that week is caused by adoption, whereas knowing other toddlers better in our family and through friends, I tend to think it's just them being typically monsterish children sent to try us Having said that, both have come on massively and are far, far happier children than they were before adoption, I genuinely shudder to think what their lives would be like if they had not been adopted.
Re: bonding instantly, I certainly didn't with my ds (birth child) but the feelings grow over time and one thing I can say for certain that labour is not the hard part of being a parent, it's all the years that follow.
Best of luck to all!