If you're planning to build one take a look at this:
http://www.bit-tech.net/hardware/buyers-guide/2012/05/18/pc-hardware-buyer-s-guide-may-2012
This guide is a bit old and the PC costs a bit more than your budget, and doesn't include OS, but you can use it as a starting point.
Please excuse my bad English.
Former gaming PC: i5-4670k@stock (for now), 16Gb RAM 1600 MHz and a GTX 1070
Current gaming PC: R5-7600, 32GB RAM 6000MT/s (CL30) and a RX 9060XT 16GB
Steam / Live / NNID : jonxiquet Add me if you want, but I'm a single player gamer.







