[bojan]

The only non-random thing that I can understand is that DNA can change in certain direction because of it's inherent chemical properties.
Other changes are impossible or after them DNA is not DNA any more, or the information encoded in it from then on is lethal for the very cell the DNA "lives" in, so it's not passed on any further (again quotes - meaning, DNA doesn't live in a cell.. it is physically there and it processes information as a part of the cell machinery, and that's all.)
The statistical outcome of all this will look like it has certain direction... which may not look like random (as I mentioned earlier, this randomness obviously has certain interval within which the system variables can change).. but it's definitely not intentional.

My feeling is that Dawkins et al sometimes do not do a good service to their ideas. However, I can understand their frustrations.. they are just trying too hard, and most of public simply have nor ability neither training to understand the scientific concepts and principles.