If you have an unlimited budget this stair lighting system by Calum Gregge is amazing. Using RGB LEDs on this system combined with some creative light sequencing sure does look impressive.
Instructables member ganglion from England installed some LED stair lighting on his stairs. He built a custom DIY circuit that allows the lights to be dimmed. To make things a bit simpler he decided to only light every second step and simply run the wires on the edge of the stairs from top to bottom. We have seen other stair lighting systems like this one that have the wires run in
