Toss out the single PC and make a cluster!
The picture listed below can be reduced into a smaller project, or if you have the budget to allow this, maybe you can get some inspiration to get out of a central data processing computer and have ARM computers to each individual job as a single unit. Imagine a colony of bees compared to the queen. Yes the queen may manage it, but the workers get the job done. Who can get the job done more efficiently? The queen directing orders? Or the bee's (ARM devices clustered into managing your processes individually) Who is getting work done at a higher speed? Delegate your PC to multiples, this is where I am putting my money into. I want to cluster probably 15 pi's into a multitasking beast.
3 laptop monitors (14-9/32" x 9-1/2")
Bracket connections that typically get mounted into the rear portion of whatever laptop you pull them from, will get bolted onto a MDF wooden frame that combines the screens into a multi-display. (I prefer laptop monitors because of the size and they're easier on my eyes, and require no calibration for good quality)
Mounted above those 3 monitors would be your main monitors
(2- Samsung 25" 1080p on swiveling mounting kit.)
Switchboard/foot pedal to manipulate the monitors and rotate the screens to adjust to your focus/ current workspace.
I present to you.... the raspberry pi cluster machine.
I will add more content later, I need to go roll cigarettes.
Or do what your wife wants you to do, throw it away. You need to get off the computer and spend more time in reality!