That's a great idea !
For Thailand cables, there seem to be more (around 4 ? ). You will find some info on this web page (the part about Thailand is in english)
Téléski nautique - Cable ski
The only cable for which I found with a real website is Phuket (here
Phuket Cable Ski - Water Skiing Wake Boarding Waterpark Phuket, Thailand ). You can travel there by bus or train from Bangkok, but it's quite far so a local plane might help.
Friends went, rented bikes, stayed a week, and had a great time. Cable is not very high, but not too bad.
I visited Thailand and loved it because there are lots of interesting visits to make (historical towns, jungle, etc) , it is friendly, cheap and very well organised for fravelers...
If you want boat riding, I tried Air time (
air-time.net - AirTime Wakeboarding in Thailand) in 2005, which was great.
There is a new place which opened in the North in Chiang Rai :
Infos an incredible spot with boats, rails and winches everywhere...
Otherwise, yes, Camsur in the Philipins (
Camsur Watersports Complex CWC - Home-best cable wake park to wakeboard/wakeskate/waterski Philippines ) seems to be really great. Everybody who went just loved it...
I hope you will tell us how it went... have a great trip...