Folks, I'll be moving back into my childhood home in May. With that in mind, I plan to totally redo my workshop, do it right, and have the wiring be permanent. Now, here's the plan. From the 100A main, assuming I have room to or can consolidate other circuits, I plan to run an 8 space sub panel using SER 6/6/6/6. From the sub, I plan to use 1/2" EMT and #12 THHN throughout the run. In addition to my workshop, I need to run three outlets from the sub to accommodate high draw appliances. Two in the basement and one upstairs. They are a washer & gas dryer, fridge, and routing upstairs for a dedicated 120V outlet for an air conditioner. As for my display, I'm going to anchor channel strut to the wall and mount my luminaire arms, NEMA lights, and VHO ballasts. On a nearby jackpole, I plan to mount the traffic signal control box and the 12" Eagle signal and pedestrian control, then the 8" Crouse off of a 4 square and fixture hanger. From the basement ceiling, I plan to hang the remaining Appleton High Bay (will be scrapping the Widelite since the ballast went and cannot be replaced.), low bay, homemade VHO fixture, and my three ring incandescent Saturn light. I know some think EMT is overkill, but I want to have the security of the steel walls. Now, all that in mind, I know that all the outlets will need to be GFI since each outlet will have its own breaker. And I was wondering if I need to run an additional ground lead or can I use the conduit itself for grounding?