Should parents be able to choose the sex of their children?

The only situation I can see this as being acceptable is if the child is born with both male and female anatomy (rare, but it does happen). In that case, I think they sort of have to choose, but in any other case I think it's wrong.

It's like 'designer babies' where you can pay loads of money and select physical traits (such as eye colour and hair colour) including gender, I believe, and then scientists do some genetics-sciencey-thing and that's the child you end up with (most of the time - it's obviously not 100% accurate).

I personally disagree with this, so I would say that it's wrong for parents to choose the gender of their child unless it is under extreme circumstances.

No as too many couples will choose one gender over the other and really make a one sided gender society which will never be able to reproduce and preserve the future of the species which would probably mean more of a gay society so a choice here wouldn't be good

I think to pick the gender, or any trait, is crossing the line. There have been some studies that suggest a father's diet can increase your chances for one gender over another, but it is far from fool proof. I think nature does a pretty good job of keeping populations in check and to borrow from (and slightly change) an old commercial, "It isn't nice to fool with mother nature."

Don't have a problem with it.  Especially as the desire for male children seems to be dying out - at least in Western society and will probably die out  in other societies as women become more educated and intergrated into the econimic life of the area.