How is this Gaming PC build?

I have changed my build a little bit and I want to know if everything here is going to work together and be a good build. I'm going to be playing a lot of stuff from the "Attack of the B team Minecraft Modpack " to "World of Warcraft". Please let me know what you think:

Processor: AMD FX 8350 8-Core Processor

Video Graphics Card: XFX Double D R9-280X-TDFD Radeon R9 280X 3GB 384-Bit GDDR5 CrossFireX Support Video Card

RAM: 16GB Corsair (2x 8GB sticks)

Operating System: Windows 8

Motherboard: SABERTOOTH 990FX R2.0

HDD: Western Digital WD Black WD4001FAEX 4TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive -Bare Drive

Power Supply: I need one but I do not know how many watts I will need. I have heard Cosair is pretty good with the power supply.

I already have the OS, RAM, Motherboard, and the HDD so please don't suggest I drop any of those because I do not want to have to return them.

Guest

I would recommend saving money on CPU by getting the 8320 as you can just overclocn it yourself and also there's not too much of a difference between the 280 and the 280x unless you really need the extra power(and you shouldn't need anymore than 550 watts maybe get a 700 watt if you want to crossfire)

Josh

Is your version of Win8 a 32bit or a 64bit OS. A 32bit OS, can only access 3.5GB of RAM.

Frostfire

Great

Orion

Ok I recommend getting the

GIGABYTE GA-990FXA-UD3 AM3+ AMD 990FX SATA 6Gb/s USB 3.0 ATX AMD Motherboard

http://amzn.to/...to/1kPZnG7

AMD FD8320FRHKBOX FX-8320 FX-Series 8-Core Black Edition

http://amzn.to/....to/LuOr0x

Corsair Carbide Series Black 300R Mid-Tower Computer Case (CC-9011014-WW)

http://amzn.to/...to/1bTRr0L

WD Blue 1 TB Desktop Hard Drive: 3.5 Inch, 7200 RPM, SATA 6 Gb/s, 64 MB Cache - WD10EZEX

http://amzn.to/...to/1gfpteU

Corsair Builder Series CX 600 Watt ATX/EPS 80 PLUS (CX600)

http://amzn.to/....to/JZeBYX

E-3lue Cobra EMS109BK High Precision Gaming Mouse with Side Control 1600dpi

http://amzn.to/....to/N4C2Sw

Team Vulcan 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory (Yellow Heat Spreader) Model TLYD38G1600HC9DC01

http://amzn.to/...to/1e3ZjML

BenQ XL2420Z 24-Inch Screen LED-Lit Professional Gaming Monitor

http://amzn.to/...to/1fQYULQ

This is my pc built.

Ron

Well I do like what you did here with your system I have an fx-8150, gtx titan and 24gb ram. I bought a 1000w rosewill powersupply, highly recommended. They have a 5 year warranty

james