Money Changing

[Leither]

Hope I am posting this in the correct forum and apologies if I have made a mistake. I was wondering if some one could advise me of the best way to get money from the UK on a monthly basis (uk bank account) to use in thai. I don't want to bring all my assets over until I am settled and sure I am doing the right thing, using ATM's costs each time you use. Do I open a thai bank account and transfer on-line or are there other more productive ways for this to happen. All advice gratefully received. By the way, I am likely moving over in Feb 2012   

Thanks in advance

John