Help with new DS system config

Hello Everyone! My current DS rig (which is still awesome) is almost 9 years old and starting to show its age. Even with the upgrades I have done on it, it is hitting the ceiling on games it can run well. I thought I would ask the community for some recommendations on a new rig! Please see my specifications below. Any help would be greatly appreciated!

Budget:
$3500-4000

Expectations:
I like to buy computers for the long haul so higher end is better. I can do some system maintenance but not great at it. I am not comfortable with liquid cooling or SLI...like not at all.

Usage:
Gaming (All kinds - Wolfenstein, WOWS, WOT, COD, lots of STEAM titles, etc)
Web design / Art and graphic design
Office applications

Special Needs:
Recommendation for new monitor?
Recommendation for new keyboard and mouse?

Specifications:
I think I like the Velox case (also has digital card reading) but does it need more fans? Would like to stick to air cooling if possible?
I have a lot of games and software - more than 200GB of games that I currently play and more than 100GB of software that I keep loaded. I would be interested in storage solutions using 2 or 3 hard drives...whatever is best but not too crazy expensive.
My current monitor is 1080p but I am going to upgrade with this purchase (at least 27 inch, Gsync, IPS). I would like to stay with a single GPU so recommendations on monitor would be nice. Not sure if I will try VR or not.


Thanks in advance for the help!

KKrusher

Hey DST4ME! Thanks for the quick reply and the config. I have a bunch of questions for you.
1) Why that choice of motherboard over the other ASUS models?
2) Is that power supply enough? I probably will plan upgrades to GPU down the road so I want to make sure I have the power for some future GPU models.
3) An M2 drive for OS and SSD for mass storage and programs. No standard drive? I have a portable drive for backups and images but I also do that on a standard HD on my current rig. This is okay for storage, programs and onboard backups?
4) I am very freaked out by LC. But the h115i is "easy" to replace? I have never messed with anything associated with a CPU.

Any suggestions on monitor or keyboard? I am still researching those.

Thanks again for all the help!

KKrusher

Thanks for the reply and further information.

1) I am confused. You hate ASUS customer service but that motherboard is the right one for the rig? What does this model have that makes it the right one? Do I need that much motherboard?

2 and 3) Okay. I thought a standard HD was still desirable for reliability for back ups over SSD.

4) Watched the video on the AIO cooler and then some others. That looks pretty easy! I can do that! These kinds of coolers never leak or anything? You just have to replace them when the pump fails right? I think I could handle this!

This has been extremely helpful! If there are any other suggestions I would love to hear them!

KKrusher