Building my first computer. (Gaming)

[wave_by]

I've spent some time learning the basics of building the computers and I would like to know if the parts will work together.
So here are the parts

Motherboard- ASRock 970 EXTREME3 AM3+ AMD 970 SATA 6Gb/s USB 3.0 ATX AMD Motherboard

Link: Newegg.com - ASRock 970 EXTREME3 AM3+ AMD 970 SATA 6Gb/s USB 3.0 ATX AMD Motherboard

CPU: AMD Phenom II X4 970 Black Edition Deneb 3.5GHz Socket AM3 125W Quad-Core Desktop Processor

Link: Newegg.com - AMD Phenom II X4 970 Black Edition Deneb 3.5GHz Socket AM3 125W Quad-Core Desktop Processor HDZ970FBGMBOX

Memory: G.SKILL Ripjaws Series 8GB 240-Pin DDR3 SDRAM DDR3 1333 Desktop Memory

Link: Newegg.com - G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Desktop Memory Model F3-10666CL9D-8GBRL

Video Card: HIS H685FN1GD Radeon HD 6850 1GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card with Eyefinity

Link: Newegg.com - HIS H685FN1GD Radeon HD 6850 1GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card with Eyefinity

Hard Drive: Western Digital WD5003ABYX RE4 500GB 7200 RPM 64MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive

Link: http://www.eio.com/p-36027-western-digital-wd5003abyx-re4-500gb-7200-rpm-64mb-cache-sata-30gbs-35-internal-hard-drive.aspx

Power Supply: Antec BP550 Plus 550W Continuous Power ATX12V V2.2 80 PLUS Certified Modular Active PFC Power Supply

Link: http://www.newegg.com/Product/Product.aspx?Item=N82E16817371016

Case: COOLER MASTER Centurion 5 CAC-T05-UW Black Aluminum Bezel , SECC Chassis ATX Mid Tower Computer Case

Link: Newegg.com - COOLER MASTER Centurion 5 CAC-T05-UW Black Aluminum Bezel , SECC Chassis ATX Mid Tower Computer Case
Moniter: Acer G235HAbd 23'' 5ms 1920x1080 WideScreen LCD monitor 300 cd/m2 1000:1, VESA Compatible

Link: Newegg.com - Acer G235HAbd 23'' 5ms 1920x1080 WideScreen LCD monitor 300 cd/m2 1000:1, VESA Compatible

Keyboard: LITE-ON SK-1688U/B Black 104 Normal Keys USB Wired Standard Keyboard

Link: Newegg.com - LITE-ON SK-1688U/B Black 104 Normal Keys USB Wired Standard Keyboard

Mouse: Logitech B100 Black 3 Buttons 1 x Wheel USB Wired Optical 800 dpi Mouse – OEM

Link: Newegg.com - Logitech B100 Black 3 Buttons 1 x Wheel USB Wired Optical 800 dpi Mouse - Mice


So I have a few questions:

Will the motherboard support CPU?

Will the Case work with the parts?

Will it run Battlefield 3? (I checked the specifications and I think it will, but I just want someone with more knowledge to check)

Link to Battlefield 3 specs:http://bf3blog.com/battlefield-3-system-requirements/

Am I missing any parts?

Should I replace the fans, and If so which fans should I replace?

Do I need to buy windows 7?

 

[Talyor]

Everything seems good but Newegg.com - ASUS VH232H Glossy Black 23" 5ms Widescreen Full HD 1080p LCD Monitor 300 cd/m2 ASCR 20000:1 w/Speakers & HDMI, VESA Compatible that would be a better monitor then the acer.

Newegg.com - Rosewill CHALLENGER Black Gaming ATX Mid Tower Computer Case, comes with Three Fans-1x Front Blue LED 120mm Fan, 1x Top 140mm Fan, 1x Rear 120mm Fan, option Fans-2x Side 120mm Fan This case would be better for your situation since it has alot more fans and features then the coolermaster case, Plus its bottom supply monted so you would get better airflow then top

 

[Roark]

Missing an optical drive, but they're only about $20 Sony Optiarc 24x DVD/CD Burner.

If you can wiggle some stuff around (not sure what your budget is) I'd go for a GTX 560 over the 6850. Its ~$35 more ($10 more on the rebate though).

-$5 on the case Taylor linked.
-$15 by getting a Phenom II X4 960T

Great find on that hard drive.

 

[Talyor]

You can always pirate windows but i dont know how but Microsoft Windows 7 Home Premium 64BIT Operating System Software - OEM DVD, English at TigerDirect.com 79.99 after rebate 99.99 dollars orginal. If i didnt have windows 7 already i would i buy that since its a pretty low price that you will never find for windows.