I imagine for someone who does not have children yet (as you most likely do not), this would be a very difficult question to answer. I have two very healthy, seemingly bright, and very different children. If I had been given the opportunity to genetically alter or "select" special traits for them, I would not have chosen to do so. For one thing, this places far too much responsibility on me. Who is to say the kids would turn out better based on my selections than they would have if I had simply left everything up to the DNA pool.
I've joked that I wish there was a way to guarantee that if I have two more children they will both be boys. I've also joked that I hope my husband doesn't go completely bald as his own father, brother, and most of his grandfathers have. But in the end, I still wouldn't scientifically alter genetics. I guess it just feels too much like "playing God," not to mention the fact that if everyone was allowed to do this, somehow I think nature would find a way to retaliate.
When you look at the direction genetically engineered chickens, produce, and other food sources have gone, it is a little scary to me to imagine doing the same thing with humans.
On the other hand, if I knew that either my husband or I carried a gene that caused some sort of life threatening disease or mutation, I might opt to genetically alter the DNA to prevent my children from receiving such a gene. Interesting question, and one I'll be interested to follow in the discussion forum.