Since May 2000, the Rocks group has been addressing the difficulties of deploying manageable clusters. We have been driven by one goal: make clusters easy. By easy we mean easy to deploy, manage, upgrade and scale. We are driven by this goal to help deliver the computational power of clusters to a wide range of scientific users. It is clear that making stable and manageable parallel computing platforms available to a wide range of scientists will aid immensely in improving the state of the art in parallel tools.