Hey guys, so my one of my friends asked me if I could help him find a good pre built gaming desktop. I told him why not build it but he absolutely does not want to build his. I've looked for some on Amazon but I haven't really found any that caught my eye. His budget is $500-600, but 600 is the max he says. He wants to be able to play GTA 5, overwatch, and h1z1. Please help!