Hi Ozbargainer,
Let's check out our unbeatable special offers
COMPUTER PARTS
*Hitachi Touro Mobile MX 1TB - 2.5'' USB 3.0 Interface for $70 pickup or Delivered
http://www.cnettech.com.au/CountDownSpecial.aspx?spid=2113
*Western Digital - CAVIAR RED-2TB NAS Drive for $130 pickup or Delivered
http://www.cnettech.com.au/CountDownSpecial.aspx?spid=2114
*ALOGIC USB 3.0 SuperSpeed 4 Port USB Hub (USB34PH) for $23 pickup or Delivered
http://www.cnettech.com.au/CountDownSpecial.aspx?spid=2115
*ALOGIC 5m HDMI Cable with Ethernet - Male to Male Ver 1.4 for $5 pickup or Delivered
http://www.cnettech.com.au/CountDownSpecial.aspx?spid=2116
*IOGEAR Solar Bluetooth Hands-Free Car Kit for $30 pickup or Delivered
http://www.cnettech.com.au/CountDownSpecial.aspx?spid=2117
*Laser - Digital Radio DAB+ Portable DG108 for $34 pickup or Delivered
http://www.cnettech.com.au/CountDownSpecial.aspx?spid=2118
*Thermaltake SHOCK Premium Foldable Gaming Headset for $37 pickup or Delivered
http://www.cnettech.com.au/CountDownSpecial.aspx?spid=2119
*Thermaltake Black ELEMENT Gaming Mouse for $48 pickup or Delivered
http://www.cnettech.com.au/CountDownSpecial.aspx?spid=2120
*Roccat Kone Pure Orange, Blue for $76 pickup or Delivered
http://www.cnettech.com.au/CountDownSpecial.aspx?spid=2121
*TP-LINK 300Mbps ADSL2+ Modem Router TD-W8968 for $42 pickup or Delivered
http://www.cnettech.com.au/CountDownSpecial.aspx?spid=2122
ALL IN ONE SYSTEM
Asus –A.I.O I5-3330, 21.5 LED-TOUCH, 8GB, 1T, GT610M, DVDRW, KB-MS, WIN8-64 for $999
http://www.cnettech.com.au/CountDownSpecial.aspx?spid=2123
HOME/BUSINESS SYSTEM
GEN4 Core i3 3.40GHZ, 8GB RAM, 1TB HD, Burner for $349
http://www.cnettech.com.au/CountDownSpecial.aspx?spid=2124
Processor: Intel Core i3 -4130-3.40Ghz
Chipset: Asus H81M-E Mainboard
Memory: Team 8GB (1x8GB) DDR3 1600MHz Elite
Hard Drive: WD 1TB 7200RPM
Optical Drive: Samsung 24 +/-RW Burner
Graphic Card: Integrated on Board
Power Supply: 500W PSU
Case: ATX 8815 Tower
Lan: Gigabit
Warranty: 12 Months Part & Labour Return Base
Operating System: Optional + $119 Win 7 Home Premium or Win 8
The $349 desktop looks OK for that price.
You could maybe pair it with one of these:
http://www.ozbargain.com.au/node/122471
…for a $468 gaming rig if you really didn't want to build one yourself, just be mindful that everything but the CPU, motherboard and HDD are no-name parts. They'll probably work if this is your budget, but I usually wouldn't recommend a non-name PSU.