First off, you do not want an APU based system with such a higher end graphics card.
Second you seem to be overspending abit in a few places which would help you get a more solid platform from Intel or to get better gaming performance from AMD.
Using PCPartspicker also helps you find the cheapest components.
Here :
PCPartPicker part list:
http://au.pcpartpicker.com/p/QDZQYJ
Price breakdown by merchant: http://au.pcpartpicker.com/p/QDZQYJ/by_merchant/
CPU: Intel Core i3-4160 3.6GHz Dual-Core Processor ($149.00 @ Centre Com)
Motherboard: ASRock H97M Anniversary Micro ATX LGA1150 Motherboard ($105.00 @ CPL Online)
Memory: G.Skill Ripjaws Series 8GB (2 x 4GB) DDR3-1600 Memory ($90.00 @ IJK)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($70.00 @ IJK)
Case: Aerocool Strike-X Advance ATX Mid Tower Case ($85.00 @ CPL Online)
Power Supply: Antec 600W ATX Power Supply ($79.00 @ IJK)
Total: $578.00
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-03-24 21:00 EST+1100
EDIT : I just went for cost saving on my PSU choice, its an OK unit, but if you can, spend more.