The Baylor College Human Neuroimaging Lab (HNL) uses Functional Magnetic Resonance Imaging (fMRI) to record and research brain activity. The fMRI scans human brains at work, detecting areas of greater blood flow that indicate which part of the brain is active as subjects perform a variety of activities. The data flows from the scanners to a high-performance 32-node CentOS cluster to be analyzed and returned to researchers in statistical form. HNL Systems Administrator Justin King is a big fan of open source software and frequently writes his own applications when he can't find what he needs in the community. King also takes advantage of commercial open source projects.