El Galleon and its bar 'The Point' are run by a good friend of mine. The dive shops Techasia and Asiadivers are not strictly the same business, but are closely afilliated.
The Point bar is actually built smack bang on top of the Asiadivers dive shop, and the Techasia shop a 5 minute walk down the beach.
I'm on good terms with all of the instructors there, from regular to tech, so if it would help you in any way to help answer any questions, I'd be only too happy to pass on their contacts - just drop me a PM.
I am biased as I started diving there in 95 / 96, but the fact is that I keep coming back year after year, so they must have something going for them.
Thinking about it, you could also consider sending a PM to Happybuddha - he used to work with Asiadivers (he's even prepared to dive with me on occasions...)
Regards and hope it works out. I'll be there first week in February and won't be able to manage 2 visits in 2 months and stay married...hmmmmmmmmm
Cheers,