I always book my rooms via the internet. Sometime ago, I discovered a great local site that not only offered great service, but actually offer the lowest rates around. You can compare and check it out for yourself. Their rates are sometimes over 500 bht. difference a night! That amounts to quite a bit especially if you are booking for several days/rooms. The site is http://www.atsiam.com

Only problem I have with them is that they cannot accept bookings with Visa that does not have “veri sign,” which can be a problem since many banks here have yet to get on the Veri Sign bandwagon. In such cases, you’ll have to do a bank transfer. That said, they are very helpful and you will find that the trouble is well worth it.