I would like to learn French in St. Prex, Morges area does anybody knows wheres a good place?

I did a year of classes here when I first moved over: http://ecole-langues-vaud.com/

It's in Morges, about halfway along the one-way street you drive through heading towards Lausanne, parallel with the lake.

I really enjoyed it and learnt a lot, and there are classes at different levels and times of day, once or twice a week, etc. Much depends on the teacher, though - mine was marvellous (but she no longer works there). I also believe it's possible to swap if for some reason you don't 'click' with the group or teacher you're first allocated, they're quite flexible (as they want to keep you attending as long as possible, naturally ). You sign up for a term at a time, so it's not a terribly long commitment, and I think I was allowed a free trial lesson before signing up.