PCPartPicker part list:
http://au.pcpartpicker.com/list/bLsypb
Price breakdown by merchant:
http://au.pcpartpicker.com/list/bLsypb/by_merchant/
CPU: Intel Core i5-6600K 3.5GHz Quad-Core Processor ($333.00 @ Centre Com)
CPU Cooler: Noctua NH-L9i 57.5 CFM CPU Cooler ($54.00 @ CPL Online)
Motherboard: Gigabyte GA-Z170N-WIFI Mini ITX LGA1151 Motherboard ($208.00 @ IJK)
Memory: Corsair Vengeance LPX 8GB (2 x 4GB) DDR4-3000 Memory ($75.00 @ CPL Online)
Storage: Samsung 850 EVO-Series 500GB 2.5" Solid State Drive ($207.00 @ IJK)
Case: Cooler Master Elite 130 Mini ITX Tower Case ($58.00 @ CPL Online)
Power Supply: Silverstone Strider 600W 80+ Silver Certified Fully-Modular ATX Power Supply ($125.00 @ CPL Online)
Keyboard: Gigabyte KM7580 Wireless Slim Keyboard w/Optical Mouse ($24.00 @ CPL Online)
Total: $1084.00 without Windows and without a GPU
+ Microsoft Windows 10 Home 32bit/64bit USB Flash Drive for 139$
TOTAL:1223 AUD without a GPU!
+ estimated 280 AUD for a RX 480
~1500 AUD