Hi,
Only just noticed this post... wow 2014!!
Since then I have done the Prochem course, Marble life and a little Tilemaster day.
The training you choose will really depend on what you want to clean. The prochem course is very basic and covers a wide variety of surfaces. Its great if you want to work on vinyl, linoleum etc. If you want to work on stone you really need a specialist course like the marble life course.