Making New Gaming/Video Editing/Rendering computer!

So i want a computer around ~1500-1800. The lower the better, but i also want it to run the max it can when it comes to gaming without lag with FRAPS on.  

I play games like League of legends, WoW, BF3, Diablo 3, and any soon to come good MMORPG game. Most of this games don't require a top notch graphics card, but like when you have fraps on, your fps drops by a lot, and i don't want a laggy video, so i need something good.

So far i got some pieces in mind but i don't know if i should change them to make it a bit better or if the pieces even work together / fit in the case. SO far i got

i7 3770k
Asrock z77 Extreme 4
Radeon 7850 x 2
G-Skill 16 Gb (8 Gb x 2 preferred)
XFX Core Edition Pro 650W
Cooler Master Hyper 212 EVO
Corsair 500R
Windows Pro 64 Bit

http://www.newegg.com/Product/Product.aspx?Item=N82E168...
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
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http://www.newegg.com/Product/Product.aspx?Item=N82E168...
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
http://www.newegg.com/Product/Product.aspx?Item=N82E168...