PC requirements / user experience

I was wondering what the user experience is for different PC users with different specced PC's.

My system is a Nano Hog 4 (with the standard built in super widget) on a pc with this specs:
Intel 4770K 3.5Ghz Quad core
8GB RAM
128GB SSD
GTX760 graphics card with 2 GB Ram (2x 24" full HD displays).

Is use this system live as well as preprogramming with lightconverse on the same system.

It boots up really fast, 24 seconds from cold start until my showfile is loaded en running. (running Windows 8.1)
I like the overall performance very much, never have the feeling I have to wait for the desk.

It is a mini-ITX system however and I might buy a second PC only for live usage to make a smaller flightcase for the system.
Have been looking at Intel NUC, but only goes to 1.3Ghz dual core with "boost" (??) to 2.6Ghz, would this be enough?
The PC I have now would then only be used for the visualizer and maybe for backup.

What are you using for your Hog 4 PC and how happy are you with it?