1k Build, WA-Aus (Compatibility check?)

[Hruhf]

My old desktop blew up a while ago and I've finally gotten the permission for a new one.

This is the build I'm currently looking at, I'm relatively new to PC building so if someone could double-check that everything is compatible I would appreciate it.
[IMG]http://s.hruhf.in/2012-04/Screenshot-2012-04-29_19.45.45.png[/IMG]
The shop that I think we're going to be buying from is [URL="http://www.ple.com.au"]these guys[/URL]. If there's somewhere cheaper in WA, Australia please say so.

I could probably re-use my optical drives from my old build.
My monitors are 1920x1080 and 1440x900, secondary may be increasing since there's a spare lying around somewhere.
Should be able to re-use my old case.
I have 5.1 speakers.
I think I'll be able to get an OEM windows 7 from my uncle.

I don't play games often and they're not normally high-end but I'd like this computer to be future proof as I only ever "upgrade" when my computer is completely dead.
Most of the games I play chug along on low-med on my laptop so I assume they'll be fine. (ManiaPlanet, Sims, G-mod, Dota2, etc..)
My university course involves lots of programming, technical drawings in AutoCad/Inventor and other related stuff but I don't think that'll be much of a problem since they run fine on my laptop.

I have a feeling I've missed something.

[editline]fakemerge[/editline]
Here are links to the parts:
[URL="http://www.ple.com.au/ViewItem.aspx?InventoryItemID=609119&CategoryID=282"]GEIL 4GB SINGLE DDR3 DRAGON C9 1333MHz[/URL]
[URL="http://www.ple.com.au/ViewItem.aspx?InventoryItemID=609258&CategoryID=235"]INTEL CORE i5 3570K 3.4GHz 6MB RETAIL BOX[/URL]
[URL="http://www.ple.com.au/ViewItem.aspx?InventoryItemID=609131&CategoryID=243"]WD CAVIAR GREEN 3.5" 1TB 7200/64MB/SATA3[/URL]
[URL="http://www.ple.com.au/ViewItem.aspx?InventoryItemID=609239&CategoryID=508"]GIGABYTE GA-B75M-D3H DESKTOP MOTHERBOARD[/URL]
[URL="http://www.ple.com.au/ViewItem.aspx?InventoryItemID=601374&CategoryID=318"]ANTEC TRUEPOWER NEW 550W SEMI-MODULAR PSU[/URL]
[URL="http://www.ple.com.au/ViewItem.aspx?InventoryItemID=608842&CategoryID=259"]XFX HD6870 DUAL FAN 900M/4200M 1GB/D-DVI/HDMI/m-DP[/URL]
[URL="http://www.ple.com.au/ViewItem.aspx?InventoryItemID=601434&CategoryID=401"]CREATIVE SOUND BLASTER VX 5.1 PCI SOUNDCARD[/URL]
[URL="http://www.ple.com.au/ViewItem.aspx?InventoryItemID=607350&CategoryID=355"]CORSAIR FORCE 3 60GB 2.5" SSD SATA3 525/490[/URL]