Building a PC with all-new parts is one of the great joys of life. The excitement of unboxing shiny new components, taking in the intoxicating smell, and a**embling the system in anticipation of a great experience is unmatched. But, buying everything new every single time might not be an option maybe you’re building a stop-gap PC while saving for something better, putting together a secondary PC for a DIY project, or even taking it as a challenge to build a killer PC with used parts.