Looking for a gaming computer

[Invisipixel]

Alright so... I need a good gaming computer to record games such as mine craft, GMOD, ARMA 3, and Skyrim. I'm not against building a computer but my budget is $500. Thanks for your help!

 

[herrwizo]

Do you need a monitor? OS? Optical drive? Peripherals? Without all of them, this would fit the bill:

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i3-4130 3.4GHz Dual-Core Processor ($100.95 @ SuperBiiz)
Motherboard: MSI H81M-P33 Micro ATX LGA1150 Motherboard ($39.89 @ SuperBiiz)
Memory: Crucial Ballistix Sport 8GB (2 x 4GB) DDR3-1600 Memory ($60.99 @ Newegg)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($49.98 @ OutletPC)
Video Card: XFX Radeon R9 280 3GB Double Dissipation Video Card ($169.99 @ NCIX US)
Case: NZXT Source 210 (Black) ATX Mid Tower Case ($29.98 @ OutletPC)
Power Supply: EVGA 750W 80+ Bronze Certified Semi-Modular ATX Power Supply ($59.99 @ NCIX US)
Total: $511.77
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-02-06 06:47 EST-0500

 

[Invisipixel]

I do need all of those but i might be able to find some crappy ones laying around