Proven cloud or Infrastructure as a Service (IaaS) computing solutions such as IBM's Computing on Demand (CoD) are very attractive for many commercial enterprises especially in today's environment of flat or shrinking IT budgets. With a spectrum of flexible offerings and pricing models, IBM's CoD solution provides secure, affordable, elastic, and risk-free access to IT infrastructure resources for companies that need to quickly scale-up or scale-down their IT needs to adapt to their business demands. Through IBM client interviews across several industries and other industry and workload analyses, this paper examines the benefits and costs of IBM's CoD offering for high performance business and technical computing.