Good Gaming/Recording Computer

[Invisipixel]

I need a good computer that will play and record games like Minecraft and GMOD, and possibly ARMA. It also needs to be able to handle video editing in Adobe Lightworks. My budget is $500 but I need an OS, keyboard, and mouse.
Would this one work?
PCPartPicker part list: http://pcpartpicker.com/p/ZVVLHx
Price breakdown by merchant: http://pcpartpicker.com/p/ZVVLHx/by_merchant/

CPU: AMD Athlon X4 860K 3.7GHz Quad-Core Processor ($65.99 @ NCIX US)
Motherboard: Asus A78M-E Micro ATX FM2+ Motherboard ($37.98 @ Newegg)
Memory: Kingston 8GB (1 x 8GB) DDR3-1600 Memory ($57.49 @ SuperBiiz)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($43.99 @ SuperBiiz)
Video Card: Sapphire Radeon R7 260X 2GB Video Card ($99.99 @ SuperBiiz)
Case: Azza SIRIUS ATX Mid Tower Case ($34.99 @ Newegg)
Power Supply: EVGA 500W 80+ Certified ATX Power Supply ($29.99 @ NCIX US)
Operating System: Microsoft Windows 8.1 (OEM) (64-bit) ($89.75 @ OutletPC)
Keyboard: Cooler Master CM Storm Devastator Gaming Bundle Wired Gaming Keyboard w/Optical Mouse ($23.99 @ SuperBiiz)
Total: $484.16
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-02-11 08:11 EST-0500

 

[RCFProd]

In this build I improved the motherboard to an X88 and changed the RAM to dual channel, I also changed your HDD as the caviar blue is really reliable.

http://pcpartpicker.com/p/XgvNZL

Lower you can't go, this all is bare minimum.

 

[ykki]

PCPartPicker part list / Price breakdown by merchant

CPU: AMD Athlon X4 860K 3.7GHz Quad-Core Processor ($65.99 @ NCIX US)
Motherboard: Asus A78M-E Micro ATX FM2+ Motherboard ($47.98 @ Newegg)
Memory: G.Skill Ares Series 8GB (2 x 4GB) DDR3-1600 Memory ($59.99 @ Newegg)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($43.99 @ SuperBiiz)
Video Card: Sapphire Radeon R7 260X 2GB Video Card ($119.99 @ SuperBiiz)
Case: Enermax ECA3253-BW ATX Mid Tower Case ($33.99 @ SuperBiiz)
Power Supply: EVGA 500W 80+ Certified ATX Power Supply ($31.99 @ SuperBiiz)
Operating System: Microsoft Windows 8.1 (OEM) (64-bit) ($92.99 @ SuperBiiz)
Keyboard: Cooler Master CM Storm Devastator Gaming Bundle Wired Gaming Keyboard w/Optical Mouse ($23.99 @ SuperBiiz)
Total: $520.90
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-02-11 08:23 EST-0500

Change out the RAM(better)
Changed out the case to something cheaper but still good quality.

 

[ykki]

PCPartPicker part list / Price breakdown by merchant

CPU: AMD A10-6800K 4.1GHz Quad-Core Processor ($118.75 @ NCIX US)
Motherboard: ASRock FM2A88X PRO3+ ATX FM2+ Motherboard ($72.55 @ Newegg)
Memory: G.Skill Ares Series 8GB (2 x 4GB) DDR3-1600 Memory ($69.98 @ OutletPC)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($48.99 @ SuperBiiz)
Case: Enermax ECA3253-BW ATX Mid Tower Case ($38.99 @ SuperBiiz)
Power Supply: EVGA 600B 600W 80+ Bronze Certified ATX Power Supply ($44.99 @ NCIX US)
Operating System: Microsoft Windows 8.1 (OEM) (64-bit) ($97.99 @ SuperBiiz)
Keyboard: Cooler Master CM Storm Devastator Gaming Bundle Wired Gaming Keyboard w/Optical Mouse ($27.98 @ OutletPC)
Total: $520.22
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-02-12 22:01 EST-0500