I've got the xenon under counter similar to the ones in DARISC's picture. They do what they are supposed to and do it well.
My favorite lighting product is the led rope lights in the link provided. They are almost flat so can go into many tight spaces. Remote controlled with an almost infinite color combinations. Many uses, I use mine to backlight a tv and also to use as an accent light as a wall wash. The color change function can be set to slowly fade green to red, my wife like this at xmas for the festive look.
The price on these blew away others and the flexibility is a winner. Two thumbs way up.
LED Lighting Kits DIY