Totem 

Foscarini 

Totem Floor standing lamp designed by Valerio Bottin for Foscarini

Constructed from lightweight materials, yet designed to be very stable - Possibly a good choice if you have a young family and the thought of having glass lamps is far from sensible.

It also has the simple, but effective feature that each of the three lights can be independantly controlled so that you can have any or all of them on at any one time - controlled by a foot operated switch.