Hopefully, they will have the living room, dining room, kitchen and hall to free-range in during the winter. I'm going to fence of the tv and pc in the living room, and neutralise every thing in there to be on the safe side, as I hve had them all in the living room at some point to groom them and play with them in their pairs on the settee.
So far I haven't had any real fights, just a lot of nipping and fur pulling. Pebbles has taken the brunt of it, and he has a few patches of fur missing - only noticeable when blowing on his fur.