Help with i7 990x Gaming/Multimedia Rig

I was gifted an extreme edition i7 990x and I want to build a custom gaming Pc around it that can Max out any game at 1080p with FPS between 60 and 80. I am also going to be Approximate Purchase Date: Within a month most likely

Budget Range: 800-1000

System Usage from Most to Least Important: Gaming at 1080p/ Rendering 1080p video through Sony Vegas/ browsing the web/ netflix streaming

Parts Not Required: I don't need a CPU. I already have a extreme edition Intel i7 990x I was given. I would like the PC built around the cpu

Preferred Website(s) for Parts: newegg and amazon

Country: USA

Parts Preferences: by brand or type : None as long as the parts are reliable and budget friendly

Overclocking: Yes most likely

SLI or Crossfire: Maybe but probably not unless there is an affordable option

Monitor Resolution: 1920x1080 rendering 1080p game capture footage in Sony Vegas.