In Australia it can be kinda tough to get a good gaming desktop for under $1200. Build a desktop and save money!
This is the build I am using. All parts of Umart so you can get all the parts in 2-3 days after ordering.
Note: Does not come with Keyboard, Mouse, Internet Cable and Screen. If you look on there site I'm sure you can find that as well. The prices are pretty good though for here. I did include Win8 in this build so if you have a spare OS than it will only cost you $976. Oh and I already included the Shipping and Handling into the price.
Intel Core i5 4440 LGA1150 - $214 https://www.umart.com.au/pro/products_listnew.phtml?id=10&id2=&&bid=5&sid=138908
Gigabyte GTX760 OC 2G - $305https://www.umart.com.au/pro/products_listnew.phtml?id=10&id2=247&bid=5&sid=135921
FSP 550W Raider Series 80 Plus Silver PSU - $85https://www.umart.com.au/pro/products_listnew.phtml?id=10&id2=&&bid=5&sid=107059
Gigabyte GA-H81M-DS2 Motherboard - $65https://www.umart.com.au/pro/products_listnew.phtml?id=10&id2=247&&bid=5&sid=161203
Casecom Seine KM-6788 Gaming Case - $49https://www.umart.com.au/pro/products_listnew.phtml?id=10&id2=&&bid=5&sid=159913
Samsung SATA Black Internal DVD Writer - $21https://www.umart.com.au/pro/products_listnew.phtml?id=10&id2=&&bid=5&sid=97641
Western Digital WD1003FZEX WD Black 1 TB - $92https://www.umart.com.au/pro/products_listnew.phtml?id=10&id2=129&bid=5&sid=151107
Team 8GB Single DDR3 1600MHz C9 Elite - $95https://www.umart.com.au/pro/products_listnew.phtml?id=10&id2=140&&bid=5&sid=158591
Microsoft Windows 8.1 64bit OEM - $112https://www.umart.com.au/pro/products_listnew.phtml?id=10&id2=&&bid=5&sid=141696
$50 Shipping and Handling.