When I moved, the first thing i did was run cat6 everywhere. figured it was best to get the holes in the walls and patched before the decorator came in and started painting the walls and making the place look liveable. Getting it run after the fact is a bit more tricky if you want to keep the WAF.
Axiom: ADA1000, LFR1100, VP180, QS8, EP500, M3, M3comp
AudioSource: Amp One/A