Running LV wiring - EMT vs. PVC

I'm upgrading our studio and adding some more patch bays. Currently, I've installed some 3/4" EMT for my wire but am wondering if this will cause any grounding problems? What is recommended for this method of running wire? Should I use PVC instead to elimiate any grounding issues? Any insight would be great.

emt can only help with grounding.....if it's installed correctly and you have the proper grounding in your breaker box. I've been an electrician for more than 20 years and I always prefer emt over pvc.