Need help with gaming pc build

Solution
A few slight improvements.
Extra wattage isn't necessary, best to save cost at this stage, a CPU upgrade will come before a GPU upgrade, and by then they will be even more power efficient.

PCPartPicker part list / Price breakdown by merchant

CPU: Intel - Pentium G4560 3.5GHz Dual-Core Processor ($79.00 @ PLE Computers)
Motherboard: ASRock - B250M Pro4 Micro ATX LGA1151 Motherboard ($109.00 @ IJK)
Memory: G.Skill - Ripjaws V Series 8GB (2 x 4GB) DDR4-2400 Memory ($103.40 @ Umart)
Video Card: EVGA - GeForce GTX 1060 3GB 3GB SC GAMING Video Card ($329.00 @ PLE Computers)
Power Supply: Corsair - CXM 450W 80+ Bronze Certified Semi-Modular ATX Power...

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PCPartPicker part list / Price breakdown by merchant

CPU: Intel - Pentium G4560 3.5GHz Dual-Core Processor ($79.00 @ PLE Computers)
Motherboard: ASRock - B250M Pro4 Micro ATX LGA1151 Motherboard ($109.00 @ IJK)
Memory: G.Skill - Ripjaws V Series 8GB (2 x 4GB) DDR4-2400 Memory ($103.40 @ Umart)
Video Card: Asus - GeForce GTX 1060 3GB 3GB Dual Video Card ($349.00 @ PLE Computers)
Power Supply: Corsair - CXM 550W 80+ Bronze Certified Semi-Modular ATX Power Supply ($95.00 @ Shopping Express)
Total: $735.40
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-07-16 11:33 AEST+1000

If you can go over a bit this would be a pretty awesome setup for your budget
 
A few slight improvements.
Extra wattage isn't necessary, best to save cost at this stage, a CPU upgrade will come before a GPU upgrade, and by then they will be even more power efficient.

PCPartPicker part list / Price breakdown by merchant

CPU: Intel - Pentium G4560 3.5GHz Dual-Core Processor ($79.00 @ PLE Computers)
Motherboard: ASRock - B250M Pro4 Micro ATX LGA1151 Motherboard ($109.00 @ IJK)
Memory: G.Skill - Ripjaws V Series 8GB (2 x 4GB) DDR4-2400 Memory ($103.40 @ Umart)
Video Card: EVGA - GeForce GTX 1060 3GB 3GB SC GAMING Video Card ($329.00 @ PLE Computers)
Power Supply: Corsair - CXM 450W 80+ Bronze Certified Semi-Modular ATX Power Supply ($85.00 @ Shopping Express)
Total: $705.40
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-07-16 11:35 AEST+1000
 
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