eBay: $150 for a complete i5 build with windows pro COA. The RAM was 4x1GB so I replaced with RAM that I had spare to make 8GB free shipping
GTX 950 75 watt card for $119 minus a $30 rebate. It is a 75 watt card and I worried that the PCI-E 2.0 only provided 60 watts but after some research, it does provide 75 watts. https://www.asus.com/support/faq/104406/
I did not have to upgrade the power supply to run this, as it was a 350 watt. I could swap out for a $25 EVGA 430 watt if I run into issues though.
For $240 I have a PC that can comfortable play Witcher 3 at medium settings but will really excel at games like WoW, CS:GO, LoL, PoE