I'm working on building a desktop PC from scratch (for gaming). I know very little about this, and I'm currently doing research, but thought answers from here would help. If someone could help me along the way it would be greatly appreciated. Most of the computer parts I have are old and outdated, but still work. Would it be possible to just replace the needed parts and run it like new? Or would that be more expensive and defeat the entire purpose of building my own desktop? Most of the stuff dates back to 2000 at most. It's really old. If I can't create a computer from those parts, any other suggestions? I can provide a budget later. Any other details needed I will provide as soon as possible.