The conference fee amounts to 1800 Mexican Pesos or 165 US$ or 125 €. This is to be paid upon registration in cash in either of the three currencies. (Note that we will not have change for US Dollars or Euros.) The fee covers full access to conference venue and events, the welcome package and coffee breaks. Students that have registered early (not later than 25 April 2007) are exempt from paying the conference fee.