Aside from not buying 2 monitors?
As for DDR 4 and CPUs, they are pretty much the same price as what you have. In the build I put together, the memory I was looking at is actually cheaper than what you picked out. The CPU, on the other hand is $10 more: https://pcpartpicker.com/user/RagingOrgyNuns/saved/#view=4wkV3C
. So you'd be paying $8 more for the newer tech with almost identical stats. Agent can correct me if I'm wrong (and I hope he will), but I think Intel Core i5-6600K 3.5GHz Quad-Core Processor uses less electricity and gives off less heat which might save you that $8 over a couple years (but that is just me guessing on how much electricity actually costs).
I think you could also save some moolah on your case as well as your power supply. The power supply in my build has a platinum rating and is $30 cheaper. In theory it should save you some cash on your electric bills as well. https://en.wikipedia.org/wiki/80_Plus
As for the case, you should be able to find something in the $50-$70 range that will be pretty comparable to the one you have.
The main difference between our builds are your $800 for 2 monitors.
My only other comment is one that would increase your cost, and that is to not buy a 1TB HDD. Unless you have some external HDD's, then you are going to run out of space in no time at all. For $200, you could get a 5TB HDD. I'm not saying that is the one to buy, just that I think at least 2TB and closer to 4 TB is a good goal for a little more money. But then again, you know how you use your computer best. I download a lot of movies and music and am a bit of a packrat and don't delete them.