Hi:
I believe you're asking about door sills. Search for that and you will find everything you're looking for. These would be the chrome or brushed aluminum sill covers that sit on the body just under the door. (So when you open the door you're looking down at it. ). There are even some threads explaining how to change the color of the light. There is a set for sale on eBay right now as well.

Hope this helps!

GassGhost