That is a really, really good build. I wouldn't spend more than $150-$160 on a mobo but that's me
![Smile :) :)](/data/assets/smilies/smile.gif)
. No reason to change.
That monitor for that price is a *steal*. Never seen it lower than $480 in the year or so I've been watching it. I'd buy it today even if you're not ordering the rest right now. Love mine! Get the ICC profile for it from tftcentral.com and shouldn't have to calibrate much.
The Dell also looks great if you set the game to 1080p to get the framerate up in something like BF1.
GPU will carry you for 4 years or so, CPU 5-6. Game on!