French - Advice Needed

I am researching French classes to take (hopefully full time) to learn the language and pass the government French level tests.

If you have any advice on...

*what to look for in a French school/training centre (and anything to avoid)?

*things I can do to learn French (I am listening to French radio; do not have a TV but hope to find online sources, have some magazines/books)

*any other advice about this

Thanks!