We'll be fiding out. We did with DS, and will again this time.
I agree with a PP who was talking about labour being enough of a surprise, and not once during my labour did I think 'oh I can't wait to meet my boy'. Um, no. It was 'OMG this hurts', and 'breathe in, breathe out' Along with my fave 'and it burns burns burns.... the ring of fire.....' after the middie mentioned crowning. LOL

I have a son already. Whilst I am not at all fussed if I have a boy or girl, I think knowing will actually help it feel more real to us. We seem to sit back and not do alot until the morph scan. This way, we know we have to chose a name for one gender, get clothing etc, and have time to bond with the little on inside a little more.
I am usually 'told off' by people for deciding to find out.
It doesn't matter what you do, there will always be someone telling you differently