Let me see if I can get you to spend a few more $$
CPU: Perfect, don't even consider anything else...In editing, and CAD, it blows the i5 out-of-the-water.
Mobo: ASRock's Z87 Extreme4 (great mobo, excellent bundle for the price); Gigabyte's Z87X-UD3H; Asus' Z87-Plus (I do find that Asus Mobos are very spartan in their bundles, and really justify their premium price).
In this price bracket I recommend MSI's Z87-GD65 Gaming, the Extreme4 being a close second. Sort of depends on the deals you are able to get in your area (you will always have your region's Amazon, with the best prices).
DDR: If it's an aesthetic choice, go for it...A bit too expensive for my taste. Take a look at Crucial Ballistix Tactical 2x8 kits...Best DDR3 Kits I ever found (aside from the exotics, or Crazy-Speed kits).
SSD: Too small to be useful, specially with all those editing programs, Autodesk, System, games...
A bigger SSD would be essential, IMO. Again Crucial M4, which is currently very cheap (50/60% off at Amazon). A brilliant SSD, known for it's reliability (I have dozens of these things, and not one has ever let me down). Both M4, and M500 are equally reliable.
Case: Yes!!!
PSU: Seasonic Gold, can't get any better than that, unless you go Platinum. Excellent PSU.
CPU Cooler: If you are only going to do moderate OCs, it's fine. Just to be on the safe side, buy a second fan for a push-pull configuration.
Now, what I find totally unacceptable is the optical drive...How could you? ;)
Looks like a well throughout build, to me. My only concerns are the SSD, which I find too small for your needs, and also the Monitor. I didn't mention it because it can be a complement to an already existing main monitor (?). If it is not, such a small monitor for productivity...
Cheers.