Thanks. All this info is so over my head.. I know I have a good monitor and operating system.. Does that mean like, windows xp?? That's what I have now. I also have disks to my old acer for vista. If that will work. I just need the cheapest build for being able to play fallout's newest game and minecraft etc, that he wants. Today's my husband's last day of work till after Christmas, so I gotta do it as cheap as possible. My other son is wanting a bike too.. So, yeah, cheapest I can build it for for now, the better. I'll upgrade as I can. Thanks for the help in deciding. Y'all are awesome!