My PPL cost about 6k two years ago and I did it in the UK. You may well be able to get it cheaper though.
You will need a deep pocket for commercial training - ATPL exams £2500, CPL £5000, MEP £2000, IR £10000, MCC £2000. These figures are just a rough giude but should give you an idea.
Most flying schools should be able to give you a fair idea of prices to meet minimum training requirements.
Good luck!