The door jam switches are a standard item at supply houses. Remember they come is two configurations - lights on when the door is opened, lights on when the door is closed.
I usually give the switch box to the carpenter and let him cut it into the framing. Also remember to backfeed the switch.
Think about the control of lights in the greatroom - does the customer understand if they close the doors that the lights will turn off? let the know before all the wiring is complete, it will save you a big headache later.
Pierre
