Hi. I am an accountant, so hopefully should be able to give some advice.
My first piece of advice would be not to start the exams without a job. In my experience it is no advantage and in a way makes you less employable, although employers will be reluctant to admit that.
SOmeone may come on and contradict me, but when I recruit people, I want to get what I pay for. So if someone has no experience, the exams are next to useless. Generally speaking you want someone to do the more boring stuff for a while anyway (because someone has to), before they start to take on more responsibility.
A training contract should give all sorts of perks in terms of paying for study and study leave, but they do tend to go to young graduates. THere are other routes in, but my advice would still be to get some kind of accounts-related job before taking on the exams.
It is the sort of profession where getting your foot in the door is the hardest bit. Once you have some experience, you should be able to stay in work and progress through the exams, although progress can be slow, and it isn't really until you qualify that your salary will go up significantly.
The second piece of advice is to research/decide what sort of accountancy he would like to go into. For example, I am a senior management accountant in the public sector. I chose this because I thought it would be interesting - and it is - but it is not as highly paid or 'prestigious' as working for a big firm (not yet, but very senior jobs can be, and there are plenty of them!).
Let me know more info and I can try to direct my advice better, rather than telling you everything i know in one mammoth post!