Reply #11: I did!

[latebloomer]

Had a boy first, who is beautiful and delightful, but had always longed for a baby girl, and boys run in my husband's family.

No way would I have gone to high-tech means, but I did follow the suggestions in a book called "How to Choose the Sex of Your Baby"-- which involved, for a girl child-- sex a couple days BEFORE ovulation, missionary position, no female orgasm.

The theory is that the sperm that produce girls are slower-moving but hardier, while the boy-producing sperm move fast but die quick. Therefore if you want a girl you have sex a couple days before ovulation-- so by the time the egg drops the boy sperm have mostly died out. If you want a boy you have sex right at the time of ovulation.

Scientific? I don't know-- it was worth trying, and it worked for us!