Building a computer to run CLOD, ROF , IL2 fully modded & maxed out

[kennel]

Hi

I am finally in the market to get a new gaming pc. I am looking for any advice, threads ect to create a desktop pc that will run CLOD, ROF & IL2 fully modded & maxed out.
I have recently walked into a Computer supplier shop & got a paper build that is budgeted for 2000 Australian dollars that has the following

Motherboard

quad core proccessor, he also suggested an 8 core proceesor

16 gig of ram

SSD drive

1 terabyte hard drive

basic cd/dvd drive

PC case

NVidea gtx 680 card with 2 gig of ram

1000 watt power supply

windows pro 7 installed

keyboard & mouse.

I have 2 flatscreen monitor & speakers/ headphones from my old machine & I will provide more accurate details of the build when I get home.

I am considering dropping back to 8 gig of ram & going for the 8 core processor but any advice will be apreciated
I want to get the build right the first time