upgrades for unbuilt 500 dollar pc

Solution
I think your priorities are terribly wrong when you will spend $160 on a keyboard and mouse for a computer that will struggle to play games

This makes much more sense to me
PCPartPicker part list / Price breakdown by merchant

CPU: AMD Athlon X4 860K 3.7GHz Quad-Core Processor ($73.88 @ OutletPC)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($25.98 @ OutletPC)
Motherboard: ASRock FM2A88X PRO3+ ATX FM2+ Motherboard ($62.99 @ SuperBiiz)
Memory: Crucial Ballistix Sport 8GB (2 x 4GB) DDR3-1600 Memory ($45.10 @ Amazon)
Storage: Seagate 1TB 3.5" 7200RPM Hybrid Internal Hard Drive ($69.67 @ Amazon)
Video...
I think your priorities are terribly wrong when you will spend $160 on a keyboard and mouse for a computer that will struggle to play games

This makes much more sense to me
PCPartPicker part list / Price breakdown by merchant

CPU: AMD Athlon X4 860K 3.7GHz Quad-Core Processor ($73.88 @ OutletPC)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($25.98 @ OutletPC)
Motherboard: ASRock FM2A88X PRO3+ ATX FM2+ Motherboard ($62.99 @ SuperBiiz)
Memory: Crucial Ballistix Sport 8GB (2 x 4GB) DDR3-1600 Memory ($45.10 @ Amazon)
Storage: Seagate 1TB 3.5" 7200RPM Hybrid Internal Hard Drive ($69.67 @ Amazon)
Video Card: MSI GeForce GTX 750 Ti 2GB Video Card ($89.99 @ Newegg)
Case: Antec Three Hundred Two ATX Mid Tower Case ($44.99 @ NCIX US)
Power Supply: Antec Neo Eco 620W 80+ Bronze Certified ATX Power Supply ($39.99 @ Newegg)
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer ($15.99 @ Newegg)
Operating System: Microsoft Windows 8.1 OEM (64-bit) ($86.98 @ OutletPC)
Wireless Network Adapter: TP-Link TL-WDN4800 802.11a/b/g/n PCI-Express x1 Wi-Fi Adapter ($37.24 @ Amazon)
Monitor: AOC E2476VWM6 60Hz 23.6" Monitor ($129.99 @ Micro Center)
Total: $722.79
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-08-12 22:06 EDT-0400

and now go get a cheap keyboard and mouse
 
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