COOLER MASTER RC-690-KKN1-GP Black SECC/ ABS ATX Mid Tower Computer Case - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E16811119137
Seagate Barracuda 7200.11 ST3750330AS 750GB 7200 RPM SATA 3.0Gb/s Hard Drive - OEM
http://www.newegg.com/Product/Product.aspx?Item=N82E16822148298
POWERCOLOR AX4870X2 2GBD5-H Radeon HD 4870 X2 2GB 512-bit (256-bit x 2) GDDR5 PCI Express 2.0 x16 HDCP Ready CrossFire Supported Video Card - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E16814131116
PC Power & Cooling T1KWSR 1000W Continuous @ 50°C EPS12V Power Supply - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E16817703003
G.SKILL 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Dual Channel Kit Desktop Memory Model F3-10666CL9D-4GBPK - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231188
GIGABYTE GA-EP45T-DS3R LGA 775 Intel P45 ATX Intel Motherboard - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E16813128348
Intel Core 2 Quad Q9450 Yorkfield 2.66GHz LGA 775 95W Quad-Core Processor Model BX80569Q9450 - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E16819115042
XIGMATEK HDT-S1283 120mm Rifle CPU Cooler - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E16835233003
Scythe SY1225SL12SH 120mm "Slipstream" Case Fan - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E16835185060
$1880.
This computer is as future proof as you will get. This will play Crysis with AA on easily. No game, coming out, out on the market now, or will be out in the next couple of years will even be a challenge for this computer.
1. 4870X2, the most powerful graphic card money can buy.
2. Motherboard supports all Intel 775 CPU's, and supports Overclocked DDR3 memory. DDR3 is the newest DDR memory, and will be the standard in a year or so.
3. 4gb of DDR3 Ram, future proof.
5. Quad Core CPU. Games will eventually use more then two cores, more often. So future proofing yourself means you buy a Quad core. This is a fantastic quad core, that OC's very well.
6. One of the top HSF on the market today, arguably the best. Has beaten TRUE in various tests. Will allow you to OC without worrying about exploding your CPU.
7. Case supports up to 8 120MM fans, 6HDD, 4 5.25 inch bays, and has room for any graphic card, no matter how large.
8. 7 110 CFM fans. These things push TONS of air. You will not have cooling issues.
9. 1000W PC Power and Cooling PSU. Need I say more? 1000W of power, all the connections you need, from arguably the top PSU maker on earth.
I also left you a few hundred dollars of room to get Vista if you need it, or a new Samsung monitor.