Three happy Brits had fun on a 9 day Central Thailand birding trip.
Report is here: http://www.pbase.com/peterericsson/kaengkrachan_and_khao_yai_27th_april__4th_of_may_213

"Many thanks for making it an interesting and enjoyable introduction to birding in Thailand.
Hopefully the opportunity will arise for another visit to Thailand or maybe even Sabah in the next couple of years." Shaun Wells