The development of effective techniques for allocating computer resources is a major concern in computer center management. Most proposals, while based on concepts originally developed by economists, are based on the assumption that participants provide truthful information. Over the past twenty years, researchers in economics have explored truth-revealing mechanisms. We apply these ideas to charging for computing resources within an organization. The resulting mechanism provides an incentive for users to tell the system administrator their true valuation of a given configuration. Applications of this mechanism to both long-term and short-term situations are outlined. The long-term situation demonstrates how an appropriate computer configuration can be derived from information obtained from its future users. The short-term situation involves setting priorities among jobs.