John Storms's home in Cedar Park, Texas, pulsates to the beat of the Korean hit song "Gangnam Style." Storms stopped counting after installing 25,000 synchronized LED lights -- he says there could be twice as many. Storms, a software engineer at Nvidia, used a software product from Light-O-Rama to sync the music with the lights and a small FM transmitter to get the music onto a blank radio channel so passersby can tune in from their car radios (and neighbors stay happy). "It's about creating a sense of magic," says Storms. A humbler alternative: the Gemmy Holiday Light Show and Timer Control Power Supply for $86 at Home Depot.
$3,500: Average cost of animated light installation in New York area -- Neave Group Outdoor Solutions