Hi there. Unfortunately Newegg currently doesn't ship to Aus. And I'm cautious with Amazon.. Apparently they will ship some parts but I wonder how you'd go with a warranty claim, where do the parts actually come from? PCCaseGear, you've already found is a good one. MSY is about as cheap as it gets in Aus. Don't let their ugly website put you off. I just download the pdf pricelist and call my local to check stock availability etc
http://msy.com.au/
(I'll link from PCCaseGear, obviously you can save a bit from MSY, but this site presents info well):
Cases: A lot comes down to personal preference. This one is a good, solid case that cool well and is easy to build in, not too blingy... just how I like them.
Fractal Arc Mid $129
http://www.pccasegear.com/index.ph [...] s_id=17053
CPU: Latest Gen CPU with unlocked cores for OCing
Ivy Bridge i5 3750K $245
http://www.pccasegear.com/index.php?main_page=product_info&cPath=187_346_1184&products_id=20138
Mobo: This board has loads of features, a good all round board for a general gaming system. If you are doing anything more specific with your build just double check all the features listed suit you needs.
ASRock Z77 Extreme4 $165
http://www.pccasegear.com/index.ph [...] s_id=19867
PSU: Thinking down the track of adding a 2nd gtx 680 you want enough power for that extra card. There is a lot of talk that a 750W will power SLI 680s on an IB platform, which I don't doubt, just to be on the safe side 850W is good. Going down to the 750W for the build as listed will be plenty of juice, if you aren't looking to add another GPU.
Corsair TX-850 V2 $165
http://www.pccasegear.com/index.ph [...] s_id=17210
GPU: You don't have to look far on this website for praise of the gtx 680 and it fits within your budget. The gtx 670 has also been released which performs with 5-10% of the gtx680 in most games... hey it's your money
Gigabyte gtx 680 2GB $672 (from MSY)
http://www.pccasegear.com/index.ph [...] s_id=19788
Closer look at the 670
http://www.tomshardware.com/reviews/geforce-gtx-670-review,3200-15.html
RAM: 8 GB is plenty for gaming. Good brand and Low profile
Corsair Vengeance CML8GX3M2A1600C9 8GB $65
http://www.pccasegear.com/index.ph [...] s_id=17729
CPU Cooler: For overclocking the CPU at $40 these do just as good a job (usually within 5 deg) as coolers that are twice the price. Relatively easy to instal.
CoolerMaster Hyper 212 EVO $39
http://www.pccasegear.com/index.ph [...] s_id=18670
Optical Drive: Cheap as they come, and black (looks better in your case than white or grey IMO)
Samsung SH-222BB SATA DVDRW $22
http://www.pccasegear.com/index.php?main_page=product_info&cPath=658_667&products_id=19482
HDD: This one is decent not great... a little hard to find good HDDs around these day unless you are willing to pay way too much
Seagate 1TB $99
http://www.pccasegear.com/index.ph [...] s_id=16679
SSD: Rated a Tier 2 SSD. Realiable brand. Have come down a bit in price. For an SSD I go 120GB minimum for OS and games.
Intel 520 Series 120GB $182 (from MSY)
http://www.pccasegear.com/index.ph [...] s_id=19276
Total - $1783
So that build doesn't include a screen, peripherals or OS
Screen:
Samsung S23A750 23in 120Hz 3D Widescreen LED Monitor $249
http://www.pccasegear.com/index.php?main_page=product_info&cPath=558_1210&products_id=18232
or cheaper
Samsung S24B350H 24in Widescreen LED $195
http://www.pccasegear.com/index.php?main_page=product_info&cPath=558_1212&products_id=19602
even cheaper
ASUS VE247H 23.6in Widescreen LED $175
http://www.pccasegear.com/index.php?main_page=product_info&cPath=558_1212&products_id=16708
OS:
OEM copy of Win 7 $95
http://www.pccasegear.com/index.php?main_page=product_info&cPath=375_974&products_id=17003
Peripherals... Kind of upto you and your budget. I'd just browse around on PCCaseGear find something you like and look for reviews