I suggest you do not use house ground. Run a piece of 3/4" flat braid from each outlet to a 15' salted ground rod sunk into non sandy soil. If you can afford to do this, this is about as good as ground gets.
Really good home electrical wiring.
I am building a new HT room with 9 dedicated 20-Amp circuits and am planning on using WATTGATE's flagship 20-Amp receptacles. The one thing I am still unclear about is what type of electrical wire should be run to the HT room. I am most familiar with Romex because it is the standard for basic electrical wiring. I've been told that THHN Strand is much better than Romex. Finally I just have found out about the 8-gauge AC wire the JPS Labs sells. I am investing a ton of money into this room and want to use the best electrical wire. What do ya'll recommend?