The Magellan project was a two year project to evaluate cloud approaches for technical computing workloads. The Argonne system in the testbed deployed Openstack in January of 2011. In this talk, I will describe our experiences running OpenStack in a testbed environment and describe the major capabilities that led to its success. Upon completion of the evaluation project, we decided to transition the system into production to support the computational and infrastructure needs of the DOE Systems Biology Knowledgebase project. Since this time, we have been working to close the performance gap between private clouds and purpose built HPC systems. I will also present some early results of this work.