Metered taxis have arrived in town and are a welcomed addition.
They can be seen around town, where is hailed will charge you 30Baht for the first 3 kilometers, then 4 Baht for each additional.
If you order one by dialing 043-46577 you should pay 60 Baht for the first 3k and 4 Baht per k after that.
I have been trying to set up an interview with company management to get some data on other rates and will post when I get more info.
I have used there services and am quite impressed so far.