If you did want to build a gaming computer again, probably the easiest thing is to find a build guide on one of the popular PC sites like Tom's Hardware. They

If you did want to build a gaming computer again, probably the easiest thing is to find a build guide on one of the popular PC sites like Tom's Hardware. They often come out with several different builds in different price ranges. Theoretically, if you just order the same components, it should work with little trouble.