I have 15 outlets and 12 lights. I am running 14/2 for the lights and do I run this to the smoke dec. to Right? Then I am running 12/2 for the outlets. Can I tie all the outlets into one circuit, and how many amps --same with the lights. -or--- should I run 2 circuits and split the outlets in half on each breaker

!5 outlets is a lot for one circuit but could you tell us what you will be pulling in to the outlets? What will the load be? I usually run hardwired smoke detectors on their own dedicated circuit.

Well there is going to be 2 bedrooms one more a play room. The only big thing beside TV would be a computer. No ac-no washer/dryer.