Hi I did my PPLH in 2005, whilst being a secondary school teacher. This gave me the advantage of school holidays and it took me 75 hours and nearly £17,000 but I manged to complete the course in under eight months. I am now doing my CPL ground school via the modular course at London Metropolitan university. The course fees are about £2,000. Its a very expensive process, but I guess, in the end, worthwhile.