Need your advice ASAP!

[Richayee]

Hello, I plan on building mynew pc as soon as possible. This is going to be my first time ever doing so, but have watched videos and done various research and seems fairly easy.
I have made up my mind on what parts to use, but am not so sure if everything will function together correctly.

I plan to use this setup to play bf3 and do some video rendering. I only need the Computer it self no monitor, keyboard, etc.

So this Is what I have so far, I plan on adding another GTX 580, more HDD's, Ram, and a Bluray drive.
I've read that the psu can candle two gtx 580's with no problem, is it true?

Case- Fractal Design Define R3 Titanium Grey ATX Mid Tower Silent PC Computer Case
http://www.newegg.com/Product/Product.aspx?Item=N82E16811352004

Motherboard- ASRock Z68 PROFESSIONAL GEN3 LGA 1155 Intel Z68 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard
http://www.newegg.com/Product/Product.aspx?Item=N82E16813157263

GPU- EVGA 015-P3-1580-AR GeForce GTX 580 (Fermi) 1536MB 384-bit GDDR5 PCI Express 2.0 x16 HDCP Ready SLI Support Video Card
http://www.newegg.com/Product/Product.aspx?Item=N82E16814130587

PSU- CORSAIR Professional Series HX850 (CMPSU-850HX) 850W ATX12V 2.3 / EPS12V 2.91 80 PLUS SILVER Certified Modular Active PFC Power Supply
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139011

CPU- Intel Core i7-2600K Sandy Bridge 3.4GHz (3.8GHz Turbo Boost) 4 x 256KB L2 Cache 8MB L3 Cache LGA 1155 95W Quad-Core Desktop Processor BX80623I72600K
http://www.newegg.com/Product/Product.aspx?Item=N82E16819115070

Ram- Kingston HyperX 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 HyperX Plug n Play Desktop Memory Model KHX1600C9D3P1K2/8G
http://www.newegg.com/Product/Product.aspx?Item=N82E16820104255

SSD- Crucial RealSSD C300 CTFDDAC128MAG-1G1 2.5" 128GB SATA III MLC Internal Solid State Drive (SSD)
http://www.newegg.com/Product/Product.aspx?Item=N82E16820148348

HDD- Western Digital Caviar Black WD1002FAEX 1TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive -Bare Drive
http://www.newegg.com/Product/Product.aspx?Item=N82E16822136533

DVD- LITE-ON DVD Burner - Bulk 24X DVD+R 8X DVD+RW 12X DVD+R DL 24X DVD-R 6X DVD-RW 16X DVD-ROM 48X CD-R 32X CD-RW 48X CD-ROM Black SATA Model iHAS124-04 - OEM
http://www.newegg.com/Product/Product.aspx?Item=N82E16827106289

OS- Microsoft Windows 7 Home Premium SP1 64-bit - OEM
http://www.newegg.com/Product/Product.aspx?Item=N82E16832116986

Thermal Compound- Arctic Silver 5 Thermal Compound - OEM
http://www.newegg.com/Product/Product.aspx?Item=N82E16835100007

CPU Heatsink/Fan- COOLER MASTER Hyper 212 Plus RR-B10-212P-G1 "Heatpipe Direct Contact" Long Life Sleeve 120mm CPU Cooler Compatible Intel Core i5 & Intel Core i7
http://www.newegg.com/Product/Product.aspx?Item=N82E16835103065

Rosewill RTK-002 Anti-Static Wrist Strap
http://www.newegg.com/Product/Product.aspx?Item=N82E16899261005

Thank you in advance

Oh and will the heatsink/fan fit in the case?

 

[StrangleHold]

http://www.newegg.com/Product/Product.aspx?Item=N82E16813128507

http://www.newegg.com/Product/Product.aspx?Item=N82E16820231428

http://www.newegg.com/Product/Product.aspx?Item=N82E16820233191

 

[jonnyp11]

http://www.newegg.com/Product/Product.aspx?Item=N82E16811112304

10 more with its free shipping and is a better brand, and this one is same just a little cheaper and smaller.

http://www.newegg.com/Product/Product.aspx?Item=N82E16811112316

then strangles suggestions and it looks great. and also this may be a little better than that, not sure though

http://www.newegg.com/Product/Product.aspx?Item=N82E16817703028