Building my own PC

Geekwad

Admirable
If you need to be solidly in that range, then this:

PCPartPicker part list / Price breakdown by merchant

CPU: AMD Athlon X4 860K 3.7GHz Quad-Core Processor ($68.89 @ OutletPC)
Motherboard: ASRock FM2A88M EXTREME4+ Micro ATX FM2+ Motherboard ($58.98 @ Newegg)
Memory: Corsair Vengeance 8GB (2 x 4GB) DDR3-1600 Memory ($38.99 @ Newegg)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($44.89 @ OutletPC)
Video Card: MSI GeForce GTX 750 Ti 2GB Video Card ($89.99 @ Newegg)
Case: Raidmax Vortex ATX Mid Tower Case ($9.99 @ Newegg)
Power Supply: Thermaltake Toughpower 550W 80+ Gold Certified Semi-Modular ATX Power Supply ($49.99 @ Newegg)
Optical Drive: LG GH24NSC0 DVD/CD Writer ($13.89 @ OutletPC)
Operating System: Microsoft Windows 10 Home OEM (64-bit) ($90.75 @ OutletPC)
Total: $466.36
Prices include shipping, taxes, and discounts when available

But this system would offer a much better upgrade path (and better performance to start):

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i3-4170 3.7GHz Dual-Core Processor ($112.89 @ OutletPC)
Motherboard: ASRock H97M Anniversary Micro ATX LGA1150 Motherboard ($67.89 @ OutletPC)
Memory: G.Skill Ares Series 8GB (2 x 4GB) DDR3-1600 Memory ($42.89 @ OutletPC)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($44.89 @ OutletPC)
Video Card: MSI GeForce GTX 750 Ti 2GB Video Card ($89.99 @ Newegg)
Case: Raidmax Vortex ATX Mid Tower Case ($9.99 @ Newegg)
Power Supply: SeaSonic S12II 520W 80+ Bronze Certified ATX Power Supply ($53.99 @ SuperBiiz)
Optical Drive: LG GH24NSC0 DVD/CD Writer ($13.89 @ OutletPC)
Operating System: Microsoft Windows 10 Home OEM (64-bit) ($90.75 @ OutletPC)
Total: $527.17
Prices include shipping, taxes, and discounts when available
 
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