I have had leaflets/adverts thrown at me from every angle and can't seperate the 'we will make your child a genius, just give us £200" types from the ones that might actually be worthwhile. DS is just 4 and I think he would enjoy something outside of pre-school (15 hours a week). Football is a given really , as is horse riding. I did music from a very young age and I do have to say it was really very good, but is 4 too young? What about Kumon, drama, swimming, gymnastics, trampolining, Muzzy (language course) etc?