Hi guys, just after some advice on fixing an LCD tv to the wall. Is a solid exterior wall so can take the weight. Few questions... 1)Do I need to check some VESA number or can I just buy a universal mount?? 2) Should I get a cantilever one or standard one?? (just thinking about access to plug wires in back but want it mounted quite close to wall and not sticking out loads) 3) who can I get to install it?? Eg. builder? (am not gonna risk putting it up and see my tv come crashing down!) thanks..