System Usage from Most to Least Important: Video Editing, Photo Editing, Movies, Internet, Light Gaming
Parts Not Required: Keyboard, mouse, monitor, speakers,
Preferred Website(s) for Parts: newegg.com,
Parts Preferences: Intel CPU, open to the rest
SLI or Crossfire: No
Monitor Resolution: 1920x1080
Additional Comments: I'm new to both video editing and building. Will be using Sony Vegas for editing. I started to look at pre-built and for this kind of $$ it makes almost no sense, rather get what I want without much compromise.
The 2600k is a great selection for your uses, stick with that.
The mother board is a good choice. Gigabyte makes nice mother boards, but I am going to make a suggestion. http://www.newegg.com/Product/Product.aspx?Item=N82E168... It is about the same price, but is new tech. It is Z77 instead of Z68. And, in my opinion, looks a lot nicer than the Gigabyte mother board.
The video card that you have selected looks good. A GTX 560 Ti is a good choice for your needs.
Good selection on HDD. That is pretty inexpensive for 2tb.
Disc drive: Umm, yeah you can't really make a wrong choice with this seeing as they are all basically the same. Good choice.
OS: It's Windows 7. What can I say. Nice.
Power supply: It seems almost everyone that wants to build a new system looks at the OCZ power supplies and sees that they are cheap. Well, they are cheap for a reason, they aren't selling enough. They aren't selling enough for a reason, that reason being that they are not very reliable. I would suggest a SeaSonic power supply, or Corsair. Also, you don't need 750w for this build. You could easily get away with 650w with the GTX 560 Ti, it doesn't consume much power. Plus, with the extra money from going with a 650w instead of a 750w, you can get a modular power supply, like this one: http://www.newegg.com/Product/Product.aspx?Item=N82E168... You get what you pay for.
Nice case. Cases are really all about aesthetics until you start spending a lot of money on them.