Seeking some build help/compatibility(Newbie)

[mythodix]

Hey just want to start off by saying this is my first time building a PC and I have spent the last week researching and learning a bunch about all this so I hope what I have so far is all compatible and works right because I have came across some people who posted conflicting things. The build I'm interested in is really for part time gaming and mostly video editing as I already do video editing on my cheesy HP desktop atm. I plan on using RAID 0 again as I already have 2 1TB drives hooked up to my PC now. I have checked and double checked all the manufacturers specs and everything seemed to work with each other except I originally wanted an AMD FX6200 but was afraid of the MoBo would have an older Bios and cause me some trouble setting up. I'm also kinda worried that the PSU might be to powerful for the MoBO or GPU and it might damage the stuff??? The rest of the things like drives and stuff I know about and already have them. Thanks for anyone who takes the time to just assist me. Also I plan on keeping the PC stock for awhile until probably later this year

MoBo: ASUS Sabertooth 990FX
http://www.newegg.com/Product/Product.aspx?Item=N82E16813131736

CPU: AMD Phenom II X4 975 Black Edition
http://www.newegg.com/Product/Product.aspx?Item=N82E16819103923

RAM: CORSAIR Vengeance 8GB
http://www.newegg.com/Product/Product.aspx?Item=N82E16820233144

PSU: CORSAIR Professional Series HX650
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139012

I'm still undecided about either of these
SAPPHIRE Radeon HD 6870
http://www.newegg.com/Product/Product.aspx?Item=N82E16814102948

XFX Double D HD-687A-ZDFC Radeon HD 6870
http://www.newegg.com/Product/Product.aspx?Item=N82E16814150521

 

[sosofm]

In the same budget :
MOBO : ASRock Z68 Extreme3 Gen3 http://www.newegg.com/Product/Product.aspx?Item=N82E16813157271
CPU : i5-2500K http://www.newegg.com/Product/Product.aspx?Item=N82E16819115072
PSU : SeaSonic M12II 620 Bronze 620W 80 PLUS BRONZE Certified Modular
http://www.newegg.com/Product/Product.aspx?Item=N82E16817151095
You can have in a PC a 1000W PSU. The PSU deliver the power but every part draw how much power he need.
i5 2500k is much better than any AMD processor.In gaming 2500k is the best option.

 

[Onus]

^+1. The Sabertooth is a nice board (I have one), but is unlikely to have features that offset the far superior performance of an i5, and that are not available on a good 1155 mobo.

Edit: See if your video editing software can benefit from CUDA processing. If so, you'll want a nvidia GPU instead, like a GTX560 or GTX560Ti.
If your 2TB drives are in a RAID now, be aware that you'll need to break and recreate that RAID on the new mobo, so back up all your data first.