I was so worried when I found out I was having a boy (I cried after the scan) as I wanted a sister for my DD. I posted on another thread about boys some of my worries.
I just wanted to come back and say that when he arrived, everthing I worried about doesn't seem important anymore. It doesn't matter what "bits" he has, he's my baby and I love him to pieces! I just wanted to come back and say this in case someone is in my situation, maybe help someone else.
That said - girls are much easier at nappy change time - no fountains 
He's a week old now and I'm so proud of him and I feel like I'm going to burst with happiness when I look at him (same as with DD).
I'm assuming I am not being unreasonable! 