I'd suggest visiting the pcmasterrace reddit, and going to the Builds. There you can find updated PC builds that are much cheaper than your budget and can perform great. I myself will be building the Crusher, found on that website (at /r/PCMasterRace/wiki/builds) and it's about ~$400-500 all said and done. The page also makes ordering the parts easy by linking you to the cheapest site online that sells the part in stock. You can also find guides on putting the PC together, if that is the issue. Definitely consider building as opposed to buying, as you'll get a better computer for less cash.
