I have put together my first gaming PC build for around $600-$700 AUD. I am pretty flexible on the price so I would like some advice on the build and what parts I should upgrade etc or suggest a build of your own. Won't need peripherals just the parts below. Thanks in advance and remember, Australian sites! 
Case: CoolerMaster RC430 Black Edition 500WPSU - $81.00
Motherboard: Asrock Z77-PRO4-M Z77/4 x DDR3/1 x PCI-E3.0/4 x SATA3/4 x
USB3.0/HDMI/ - $85.00
Memory:Western Digital 1TB SATA3 HDD 64M Caviar Blue WD10EZEX - $68.00
Video Card: Gigabyte GF GTX 650Ti OC EDITION PCI-E 3.0 1GB 128-bit DDR5, 1032/5400MHz, 2 x DVI, 1 x HDMI, 1 - $129.00
OS: Microsoft Windows 8 64bit OEM - $115.00
Optical Drive: Samsung 22X DVDRW Black SATA - $19.00
CPU: Intel PENTIUM G2120/3.10GHz/3MB CACHE/LGA1155 - $82.00
RAM: Kingston KVR13N9S8/4 4GB(1X 4GB) DDR3-1333MHZ - $45.00
Total: $624 @ www.umart.com.au (Melbourne)
Case: CoolerMaster RC430 Black Edition 500WPSU - $81.00
Motherboard: Asrock Z77-PRO4-M Z77/4 x DDR3/1 x PCI-E3.0/4 x SATA3/4 x
USB3.0/HDMI/ - $85.00
Memory:Western Digital 1TB SATA3 HDD 64M Caviar Blue WD10EZEX - $68.00
Video Card: Gigabyte GF GTX 650Ti OC EDITION PCI-E 3.0 1GB 128-bit DDR5, 1032/5400MHz, 2 x DVI, 1 x HDMI, 1 - $129.00
OS: Microsoft Windows 8 64bit OEM - $115.00
Optical Drive: Samsung 22X DVDRW Black SATA - $19.00
CPU: Intel PENTIUM G2120/3.10GHz/3MB CACHE/LGA1155 - $82.00
RAM: Kingston KVR13N9S8/4 4GB(1X 4GB) DDR3-1333MHZ - $45.00
Total: $624 @ www.umart.com.au (Melbourne)
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