Hey PerfectRhythm,
Right so, I'm going by US Dollars, and 2000 Australian Dollars = 1,455.03. So 1450 USD.
I'd suggest looking at this build, sorry I wish I could use PC part picker but my laptop has decided that it will not work with it:
CPU: Intel 4790K
CPU cooler: Thermalright Macho Rev. B
Motherboard: Gigabyte GA-Z97X-Gaming 5
RAM: Patriot 2x4GB Viper III DDR3 2133 Black Mamba
SSD: Samsung 850 Evo 500GB
HDD: Toshiba 2TB
GPU: Sapphire Radeon R9 390X 8GB Tri-X
Case: Rosewill Blackhawk
PSU: EVGA Supernova 650 G2
Total: I don't have the exact prices, But I assure you that it won't go higher than 2K aus Dollars. Plus this also includes the price for an OS.
However, I usually don't include it because you can buy some off of reddit...