I'm rewiring the house and want to include some cables for a home network - Internet, tv/sky/hd etc. If I was to run some cat 6 up to the loft along with some wf100 shotgun coax, how many of each should I ideally be looking at pulling in to each room to cover myself? I'm gonna use 25mm conduits in the walls bushed into 45mm back boxes. Should I assume that I'll get 2 shotguns or 4 cat 6 to a 2 gang box? Thanks!