So we didn't quite go for the radical change. The plan was to move all the kids things into our living room and make my daughter's room into our bedroom (as we all sleep together anyway) and my son's room would be my craft room, so the living room would end up as the playroom.
You see; my kids don't use their rooms a whole lot and we (I!) could really use the extra space but...
I had second thoughts.
Instead I've finally had the last lightning installed so the kids (read: My son) can move around and flick on lamps everywhere.
I also decorated the walls here and there and I'm super thrilled with my kitchen dining area above.