well this is for the ceiling, on the second floor so it is easy to route the wires, and used coaxial crimps. I was afraid that the drywall would crumble that is why I was thinking of grommets. My system goes to the closet and that is where I am routing everything. Also put ethernet internet connection in each room and phone. Routed back 3 usbs from the bedroom so I could have keyboard and mouse and keep the computer in the closet. Looking to route a svideo cord so I can have the computer in the closet as well. It will be a crazy system if everything works out and I can make it look good. Anyone know a good router or switch?