Olympic Torch Cauldron Lighting History, Opening ceremonies

The winter and summer Olympic games cauldron lighting from 1968-2010 opening ceremonies (I couldnt find a couple of the early winter ones though) Its interesting to see how its changed and how much more of a big deal it is these days! Let me know which one is your favourite and how you think it should be done for London 2012! Come on, predictions please. Sorry for low quality on some of the clips, its the best I could find. Music by John Williams