Discovery - Future Concerns - Genetic Engineering

I found this article that outlines concerns raised for the future of Genetic Engineering and the effect this may have on the Human Race and the 'Designer Baby' Scenario - it's certainly food for thought ! just how far in this field of Research is it morally acceptable to proceed ?

Many people have serious concerns about this research. Firstly because of the fear of viruses crossing from animals into humans, just like the HIV virus is believed to have spread. Another concern is the treatment of these animals. People are questioning whether we should be using animals as mini factories to produce what we want. Many argue that animals should not be treated as mere commodities for us to manipulate.
The technology being used to create these genetically-modified animals could one day be used to genetically alter humans. In the future, couples could decide which gene they would like taken out or put in, before they have a child, resulting in, what some see, as the nightmare ‘designer baby’ scenario.
People fear this could divide the human race, creating a genetically superior master race and a genetic underclass, left to the mercy of nature. This could just be science fiction, but what is very likely in the near future is that parents will choose to have undesirable disease-causing genes removed from their embryos, creating healthier children. Only time will tell what the long-term consequences of this will be.
http://www.discoverychannel.co.uk/science/dna/genetic_engineering/index.shtml