I absolutely understand gender disappointment. After DD, for some reason still unknown to me, I was terrified of the idea of having a boy.
hehehehe, PZ you remind me, not long after I found out we were having a girl, I had a bit of a panic attack thinking "But I only know what to do with a boy baby", I think it's completely normal, it's more about realising that you do in fact have the skills to parent a different sex (and we do, its just the great unknown)