Hey Conor,

It just depends - if you're pretty confident, then you can just do a course of 120 hours or more (like this one http://www.onlinetefl.com/tefl-courses/combined-tefl-courses-140.html ) then find a job in Thailand - however if you'd like a bit of extra support while you're out there, plus the comfort of having everything arranged for you, an internship might be a good bet. You can check out the Thailand Internship here: http://www.onlinetefl.com/teaching-internships/thailand-lopburi/

If it's something you'd be interested in you can meet all the other people who are heading out on the Lop Buri internship in October here: http://www.onlinetefl.com/tefl-chalkboard/groups/85-Teach-in-Thailand-Internship/discussion/681-lawoe-thailand-internship-oct-10

Hope that helps - if you need any more advice get in touch!