We're installing built-in bookcases, and I would like to include lighting in the top shelves, hardwired to a switch. Only complication is that the shelves will surround 8' of window space - 18" wide on one side and wrapping around a corner for a total of 5 linear feet on the other. I was considering xenon pucks, but am not sure how to hardwire all the lights to a single switch, or even if those are the right choice. Frankly, I'm ready to give up on having lights at all, but I know it would look great - does anyone have any experience or suggestions?