I want to have broadband installed in my small upstairs bedroom which I use as an office. However the installations I have seen locally aesthetically are appalling. Horrible runs of saggy black cable clipped around the outside of houses around door, window frames and skirting boards etc. I appreciate running cables properly takes time, so before I choose my service provider I intend to run the cable myself in a suitably concealed manner. However what cable should I use? I don't want to spend a day running a cable only to be told it's the wrong sort.