Hello,
Lord Shiva have forms where he is depicted with three, and five heads ^^ These are very strong, and have a very interesting symbolism. I can't remember a good website where I used to go, where all his forms were explained...If you are interested I can give you the link once I found it again
http://img15.hostingpics.net/pics/14...826410312n.jpg
Jai Shiva Omakara, jai, jai Shiva Omkara !
Aum Namah Shivaya