This is the best you are going to get for that budget, I went with 1x 4gb stick of ram because a) it was cheaper and b) you can put 4 more gb in later to have 8 gb. [PCPartPicker part list](http://pcpartpicker.com/p/xFyrYJ) / [Price breakdown by merchant](http://pcpartpicker.com/p/xFyrYJ/by_merchant/)
Type|Item|Price
:----|:----|:----
**CPU** | [AMD Athlon X4 750K 3.4GHz Quad-Core Processor](http://pcpartpicker.com/part/amd-cpu-ad750kwohjbox) | $79.49 @ OutletPC
**Motherboard** | [Gigabyte GA-F2A55M-S1 Micro ATX FM2+ Motherboard](http://pcpartpicker.com/part/gigabyte-motherboard-gaf2a55ms1) | $36.98 @ Newegg
**Memory** | [A-Data XPG V1.0 4GB (1 x 4GB) DDR3-1600 Memory](http://pcpartpicker.com/part/a-data-memory-ax3u1600c4g9rr) | $36.99 @ Newegg
**Storage** | [Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive](http://pcpartpicker.com/part/seagate-internal-hard-drive-st1000dm003) | $52.92 @ Amazon
**Video Card** | [XFX Radeon R9 270 2GB Core Edition Video Card](http://pcpartpicker.com/part/xfx-video-card-r9270acnfc) | $139.99 @ NCIX US
**Case** | [NZXT Gamma Classic (Black) ATX Mid Tower Case](http://pcpartpicker.com/part/nzxt-case-gama001bk) | $35.98 @ Newegg
**Power Supply** | [EVGA 500W 80+ Bronze Certified ATX Power Supply](http://pcpartpicker.com/part/evga-power-supply-100b10500kr) | $29.99 @ Newegg
**Monitor** | [Hannspree HE225DPB 21.5" Monitor](http://pcpartpicker.com/part/hannspree-monitor-he225dpb) | $89.99 @ Newegg
| | **Total**
| Prices include shipping, taxes, and discounts when available | $502.33