Installing satellite cables...

[beejay]

Got a freesat install in the front room, when I had the dish installed I had them pop a quad LNB on there so I can run feeds through to the other rooms. Think its about time I actually got around to doing it! Plan is to put some electrical conduit about the place to run the cables in, will also pop some CAT5 in there for networking the computers.

Can anyone recommend somewhere to get the cabling, conduit, faceplates etc from?
Are there any length limits on satellite cables? Rough estimates put the longest run at about 20m.