Retrofitting existing floodlights

[colinmc@xxxxxxx]

As a newbie to the world of home automation, I have what may be a basic

question.


In back of my home I have three dual floodlights (with two 75w lamps in

each) which are switched on and off at a switch inside the house.


Is it possible to add a motion sensor to the system so that these
floodlights would become "security lights". If so, what would I need to

purchase and could I, with my minimal skills, do the installation
myself? Would I replace the exsiting switch with something else?