How to study for level 2?

I'm thinking to start with level 2 and then (hopefully) get an apprenticeship for level 3. My only question is how should I study for level 2? Should I buy a training programme (McArther Morgan seems to be the popular one) or should I just get some books from Osbourne and study it like that? As it's only level 2, I think saving £500+ on a course is sensible, but I'm not 100% sure. What has your experience been like and what do you recommend?