For those of you wanting some more objective information about TESOL teacher preparation courses, you could do worse that check out this book:
Caroline Brandt, 2006. Success on your Certificate Course in English Language Teaching:
A guide to becoming a teacher in ELT/TESOL (Sage Publishing).
An excellent book for anyone preparing for a course. Details available here:
SAGE - the natural home for authors, editors and societies - Success on your Certificate Course in English Language Teaching
She covers numerous courses but focuses mainly on the 'big 3' international programs, namely SIT, CELTA and Trinity.
Alternatively, you could just check out our SIT TESOL site in Thailand! :-)
Steve
SIT Thailand - TEFL / TESL / TESOL / ESL Teaching Certificate