I have asked for additional extras in the building of my new house - that they dont normally do. + I want the speaker cables in the wall with speaker wall plates. + I also want the sky+ cables to be put at a wall plate, so having the cable go from lounge to the loft and then out to the satilitte, so not coming thru the lounge wall, as well as a cable going back up to the loft to feed the amp and the other tvs. + Cat 5 cables and the appropiate wall plates for networking around the house. Today I was shown around the house before any of the cabling has been laid so I can say where I want the wall plates to go in the house. They had fitted some of the back boxes for the the mains and and standard aerials and they looked very narrow- when I enquired about the back box I was told that the depth was about 25mm as the walls are dot and dab (or something like that). When I have been looking at the wall plates, especially for the sky+/aerial plates it seems that the deeper the back box the better, something like 47mm would be a struggle. Does anyone have any advice on whether the depth of the box box would be an issue for the requirements above? Should I forget about having the front plates flush with the wall and just get the deeper back boxes? any help would be appreciated!