I'd recommend getting an Acer G6 series monitor. They're about $120 and are of good quality. Personally, I like the 21-24" monitors at 1080p. Not too big, not too small.
That is absolutely bloody awful. A perfect example of how not to build a PC. Xeons are not good for gaming. Hyperthreading does almost nothing to improve CPU performance, an i5 will perform better for the same price and can be overclocked. Z series motherboard with locked multiplier CPU - pointless waste of money. Only purpose of Z boards over H is overclocking. Too much RAM. At this budget 16GB is a waste of money better spent elsewhere. The GTX 960 is not worth buying. The Radeon R9 380 is better for the same price and will absolutely destroy the 960 in DirectX 12. Case is too expensive. At this budget you should be spending on better hardware, not a fancy looking case. Overkill PSU. You don't need a fully modular PSU, and you don't need 750W. Again, money is better spent elsewhere. Don't use wi-fi on a desktop PC unless you absolutely have to. Finally, the build is unbalanced - there will be a huge GPU bottleneck in 90% of modern games. Oh, also, you're $60 over budget. That's a lot of money. Here's a proper $750 build, made with price/performance in mind: http://pcpartpicker.com/user/bluescreen1985/saved/WGhbt6 Entry-level i5, good enough for gaming and fairly cheap. H81 board. Not great, but it's cheap and it does the job. Saving money here allows for a much better GPU: Radeon R9 390. Much more powerful than a GTX 960 (60-80%). You can also get a GTX 970 if you want to but the 390 is better in DX12. Cheaper but still very good, 80+ gold PSU. Also makes room for the more expensive card. It's $100 less than your build and performs better. If your budget is $800 you can upgrade the CPU to an i5-6500.
You missed the point of my post entirely. Your build is unbalanced and offers poor performance for the money. You can get something a lot better for less.
No it's not. You posted a bad build. I pointed that out and provided a list of reasons why it's bad, and a link to a better one. The thread is about someone needing a PC, so all that was completely on topic. So let's please just leave it here - no need for salty arguments.
In 1080p: GTA IV and ETS2 should run at 60 fps maxed out with no problem. GTA IV doesn't like GPUs with >2GB VRAM, but there's a pretty easy fix. GTA V will run at 60 fps maxed out with grass set to medium (grass kills FPS). BeamNG will run at 60+ maxed, with dynamic reflections in mid/high. 120+ on gridmap. Rainbow 6 and The Division, no idea, but they'll probably run at 60 fps high/ultra. Keep in mind this build doesn't include monitor or peripherals. If you need those too, get this instead: http://pcpartpicker.com/user/bluescreen1985/saved/WgFV3C It will run all of those games in high settings 60 fps. GTA IV and ETS2 will run at max settings with no problem. You'll have $200 left for a monitor and kb/m.