The only questions you asked not yet answered: Yes you can do the ATPL exams, as long as you hold a PPL. The exams expire 3 years after the 14th "pass". If you believe the 'experts' (about as good as any industry - ie better than guesswork, not to be relied upon!) then now is an excellent time to start. Flight International forecast a pilot shortage in 2004 (note though I work for a groundschool, I am not trying to sell my services as we are not approved for distance learning. However, I know a lot about hte system so feel free to send me email/private messages with queries)