Multiprojection Immersive Environments are used in many applications ranging from science, engineering and art. Such VR-oriented systems have traditionally been powered by high-end graphics workstations or supercomputers, but, recently, clusters of commodity computers (such as PCs, Macs, and low cost workstations) have become a practical alternative. The advantages of a commodity cluster include low cost, flexibility, access to technology, and performance scalability. The workshop will be divided in three parts. An introductory tutorial on VR clustering technologies will cover hardware and software issues and will emphasize free software solutions. The second part will consist of 20-minute presentations on specific commodity technologies as applied to virtual reality. An open panel discussion will close the workshop.