New system or keep what I have?

Cool , thanks for your answer,
Cor
 
Your hardware selections are fine, and there is no reason to get more than 16 GB of RAM at this point.
 
Got it up and running . Some issues last week with a memory leak. But this was solved with a an older graphics driver.

For those who want to know.
-I-7700K. / asus H110m a/m2 , 16 GB RAM , 125GB SSD. 2x external USB3 3GB HD.
-14 HD Hikvision (3MP)/2x Dahua Cams (4MP) running at 15 FPS
-4 Of the above cams are duplicated.
-The 16 Cams: direct to disk 24/7 on the 2 USB HArd disk

The system is running at 20-22% , with peaks when triggers occur to 25-26 % with all 20 cameras enabled.

I am happy with this system :)
Cor