powerGPU seems to have good reviews. Nothing wrong with having your system built either don't let people give ya shit for it. I've built all but my first myself and I'm already thinking I may go pre-built when it's time for a new rig. why? Simply put I don't want to mess with it, working in IT makes me not want to work on my own stuff that much so I get it, let alone if you have never done it.