macsman,
I too completed my divemaster with Coconut tree divers at the same time as Mattboy, and would highly recommend the course.
They are the busiest shop in west end - have instructors with thousands of logged dives, 2 great big comfortable boats....with shade(an important consideration in my opinion in the tropics), 3 air-con classrooms upstairs for the academics and to escape the heat and humidity, a very strict safety ethos (yes every dive shop should have this, but having dived all over the world, this sadly isn't always the case), at least 3 tec divers on staff that I know of, nitrox capability, and as Will mentioned above, a PADI course director on staff!
I feel confident that I received excellent divemaster training with CTD, and it will stand me in good stead for any continuing diving education..and of course great memories, fantastic diving and a lot of sweat - don't go into the divemaster internship thinking it will be a walk in the park - you get out what you put in!!!.
Any further questions, don't hesitate to PM me.
David