simple automation
Jim at Haunt Master Products makes some very simple, straightforward sensor and timer combos that are built amazingly durable and reliable. A little late for this year, but he makes truly great stuff. Best value in the business too.
www.hauntmasterproducts.com
Also, Frightprops.com makes some amazing controllers as well. You'll need to buy a sensor separately ( sold there too ), but these controllers allow you to record your props electrical distribution in sequential order for more complex or scene style setups. Run's audio too so you can easily align your scares with the flow of your audio. These are really impressive products.
I'm using one of their mini booboxes this year to control our doll room. Basically, you enter a little girl's room with the walls covered in distressed, mutilated dolls. She hits her "light switch" ( radio shack momentary switch, $2 ), which triggers the lights and the audio track. The lights flicker and cut out with the sound of an electrical surge. Candle lights come on, and a clock spins backwards rapidly. A scream wails, and this exorcist-like girl drops from the ceiling about 3 feet.
All I did was run the solenoid, strobe, motor and lights into this box and pressed the buttons for each one in the order I wanted, recorded it and was done. A really cool product.