OP, I was teaching in a school recently where there was a student teacher completing the postgrad teaching qual that others have referred to. He started it around Feb this year and in October had completed the course. Coupled with his 3 year BA this allows him to teach in Australia. It is also enough to teach in England/Wales and in Scotland. If you are specifically interested in TESOL there are courses aimed at ppl who already have a recognised teaching degree which you could complete in the summer after the one year PGDE, and that would widen your options. You can also do TESOL courses such as CELTA or a Cert IV within (I think!) one semester, if you wanted to do that before committing yourself to a full teaching course.
The other alternative is a Cert IV in Training and Assessment that might give you some other options when coupled with your Masters?
The Librarianship is a good suggestion - there seem to be a few jobs around now that couple Information Services with Adult Learning (such as online access centres etc) and your Masters would put you ahead of the crowd.
Other options might include courses in community development or community education? Given your Masters and interest in childrens' lit, perhaps you might be interested in specific areas of development, rather than general teaching or ESL teaching? Saying that it is probably still a good idea for you to gain practical experience. Many postgrad teaching courses want to see evidence of prior experience in a teaching context, or at least working with children, before accepting ppl onto the course. This also helps in terms of ESL jobs.