Our first baby – we had to find out the sex of the baby at the optional 16 week ultrasound (4/13/2010). It cost us $125 in Roseville, CA. I do know many places that do these for cheaper (around $45 – 80) so make sure you compare prices. The place we went was the same clinic we went to so it’s just convenient for us. Also they do have a big screen Plasma TV so we were both able to see the baby very clearly that’s a big plus. Good luck to all and wish you all happy and healthy pregnancies.