Mega Special I build help

Ive been working on this all day with the help of many people online and i think its a pretty decent build. im probably going to order it tonight or in the morning so id apreciate it if anyone could look over it and make sure everythings compatible and will work out. also if i should go ahead and add McAfee AntiVirus Plus 2013 for $15 or McAfee Internet Security 2012 for $19.

heres the stock buildhttp://www.cyberpowerpc.com/system/Mega_Special_I/

heres the specs for what ive been working on.

Price: $1,123.00

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*BASE_PRICE:[+635]

BLUETOOTH:None

CAS:Raidmax Viper Mid-Tower Gaming Case w/ 1x USB 3.0 Port & Side Window Panel (Black Color)

CD:24X Double Layer Dual Format DVD+-R/+-RW + CD-R/RW Drive (BLACK COLOR)

COOLANT:Standard Coolant

CPU:AMD FX-8320 3.50 GHz Eight-Core AM3+ CPU 8MB L2 Cache & Turbo Core Technology [+70]

CS_FAN:Default case fans

FA_HDD:None

FAN:Asetek 510LC Liquid Cooling System 120MM Radiator & Fan (Enhanced Cooling Performance + Extreme Silent at 20dBA) (Single Standard 120MM Fan)

FLASHMEDIA:INTERNAL 12in1 Flash Media Reader/Writer (BLACK COLOR)

HDD:1TB SATA-III 6.0Gb/s 32MB Cache 7200RPM HDD (Single Drive)

HDD2:None

HEADSET1:PiXXO Multimedia Headset with Microphone [+8]

IEEE_CARD:None

IUSB:Built-in USB 2.0 Ports

KEYBOARD:AZZA Multimedia USB Gaming Keyboard

MEMORY:8GB (4GBx2) DDR3/1866MHz Dual Channel Memory (Corsair Vengeance [Free upgrade from 1600MHz Major Brand])

MONITOR:* 24" Widescreen 1920x1080 ASUS VS247H-P LCD [+157]

MOPAD1:Razer Sphex Gaming Grade Desktop Skins Mouse Pad [+13]

MOTHERBOARD:* [CrossFireX] ASUS M5A97 LE R2.0 AMD 970 Chipset CrossFireX Support DDR3 Socket AM3+ ATX w/ 7.1 Audio, GbLAN, USB3.0, SATA-III, RAID, 2 Gen2 PCIe X16, 2 PCIe X1 & 2 PCI (Pro OC Certified)

MOUSE:AZZA Optical 1600dpi Gaming Mouse with Weight Adjustable Cartridge

NETWORK:Onboard Gigabit LAN Network

OS:Microsoft® Windows 7 Home Premium [+104] (64-bit Edition)

OVERCLOCK:No Overclocking

POWERSUPPLY:500 Watts - Corsair CX500 V2 80 Plus Certified Power Supply [+10]

RUSH:No Rush Service, Estimate Ship date by 12/10/2012

SERVICE:STANDARD WARRANTY: 3-YEAR LIMITED WARRANTY PLUS LIFE-TIME TECHNICAL SUPPORT

SOUND:HIGH DEFINITION ON-BOARD 7.1 AUDIO

SPEAKERS:600Watts PMPO Subwoofer Stereo Speakers

TEMP:None

TVRC:None

USBHD:None

USBX:None

VIDEO:AMD Radeon HD 7870 2GB 16X PCIe 3.0 Video Card [+107] (Major Brand Powered by AMD)

WNC:PCI Wireless 802.11n 150Mbps Network Interface Card [+19]

Everything is good you don't need any anti virus there are plenty of free ones that are good like avast. The only thing is go for the fx-8120 instead of paying more for the fx- 8320 same amount of cores and l2 cache as it and you can easily overclock it yourself to match or even exceed the fx-8320 stock clock speed. I would hurry up and order as cyber pc sale ends in 6 hours and don't forgot to select your 3 free games you can get dirt showdown and the AMD Pitcairn Verde Bundle gives you farcry + hitman absolution.

And skip the crappy headset you picked and buy the Panasonic HTF600 and Zalman Clipon mic instead will have much better sound quality and comfort. Leave the speakers for now you can buy something better later.