New Build need help $700 - $1050

Approximate Purchase Date: June 18th

Budget Range: $700 - $1050

System Usage from Most to Least Important: Gaming (Mostly MMOS aka "SWTOR") Fallout, Video Editing, Scripting.

Parts Not Required: monitor, OS, Case

Preferred Website(s) for Parts: New Egg, Micro Center.

Country: The good old USA

Parts Preferences: EVGA, MSI, Nvidia. I does not have to be but i perfer them.

Overclocking: Never did it before

SLI or Crossfire: Yes

Monitor Resolution: 1920x1080

Additional Comments: I already have a case that i want:

Antec Nine Hundred Black Steel ATX Mid Tower Computer Case with Upgraded USB 3.0
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
$99.99 USD

I was thinking about geting a GTX 560 ti Card but i am not sure yet.