Working Holiday Program? I need info plz.

I'm a recent Bachelor of Management graduate with experience in HR management and provincial politics. I am planning to move to London mid January 2007 to work. Does anyone know if it's better to go through a government program like the YPI or the Working Holiday Program? What are the advantages? Does the government help you find employment in your field?

I was also considering working on my EU passport instead of my Canadian citizenship. Does anyone know if this is a better option? Can I still go through a Canadian gov program while working as a European?