Velocity Micro is the premier high-performance computer provider in North America. Based in Richmond, VA, Velocity Micro meets the needs of consumers and businesses with an extensive range of custom-designed, custom-built, award-winning gaming systems, enthusiast PCs, notebooks, professional workstations, servers, and small business solutions. They use the best products from manufacturers like Intel, AMD, ATI, and NVIDIA and they have access to all the latest developments like NVIDIA tri-SLI and Intel's 45nm Penryn processors.
Velocity Micro provide all the facilities on their web site for designing your own specifications with the components of your choice. What you get is a very well designed system to your spec at a very reasonable price. If you are looking for a super computer then check these people out by clicking this link --> Velocity Micro or one of the banners.