This is in purely AUS dollars, with the actual prices of the AU stores. The builds above are not accurate in terms of price as they are using the US pcpartpicker and it is displaying US prices, even when converted will not be exact, often it will be quite a bit more expensive than it looks.
PCPartPicker part list:
http://au.pcpartpicker.com/p/JNcyLk
Price breakdown by merchant: http://au.pcpartpicker.com/p/JNcyLk/by_merchant/
CPU: Intel Core i5-4690K 3.5GHz Quad-Core Processor ($279.00 @ Centre Com)
Motherboard: Gigabyte GA-Z87-D3HP ATX LGA1150 Motherboard ($145.00 @ Scorptec)
Memory: Kingston Fury Black Series 8GB (2 x 4GB) DDR3-1600 Memory ($94.00 @ Centre Com)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($65.00 @ PCCaseGear)
Video Card: Gigabyte GeForce GTX 970 4GB WINDFORCE 3X Video Card ($489.00 @ Mwave Australia)
Case: Cooler Master K280 ATX Mid Tower Case ($52.00 @ PCCaseGear)
Power Supply: Antec High Current Gamer 620W 80+ Bronze Certified Semi-Modular ATX Power Supply ($109.00 @ Mwave Australia)
Monitor: AOC G2460PQU 144Hz 24.0" Monitor ($349.00 @ Mwave Australia)
Mouse: Zowie FK Wired Optical Mouse (Purchased For $93.00)
Total: $1582.00
Prices include shipping, taxes, and discounts when available
This is more than sufficient for 3 years, maybe more depending on what you are going to do with it in the future, but for gaming this will be golden for a few years to come. You can slightly downgrade the motherboard to a cheaper one and get a cheaper gpu to get an ssd if you really need one.