I have a computer that is used to capture x-ray images using a video capture board. The company that supplied the hardware has gone out of business. I want to have a spare computer available in case the existing one goes down. I would then remove the capture board and install it in the new computer. I have ShadowProtect backup software that backs up to an external hard drive. I could use this to restore a hard drive image in case of a hard drive failure, however this is a slow process. Having a spare computer available would make the job much quicker. The existing computer has a RAID 1 installation. The OS is XP Professional. What hardware would I need to buy to configure the replacement computer?