Hi,
Is kinda late for the recommendation.. but anyway just a sharing of driver contact.
Sunthorn 0925830312 (quite and chubby type of guy) he normally available at evening after 4.00pm (BKK local time).
Fetch us from Airport to Pratunam area (Baiyoke) for only B$100, he can fetch you around and anywhere and he keep say fare is up to us... as long as we happy he happy, you can tell him to fetch you to a place and after you done then continue to another place and another then only pay B$100-200 at the end after reach back your hotel.
But never to go shop or show he recommend, I think he tend to earn a lot from commission, you must check out for the market price prior going, was quoted B$1200 for a cabaret which only cost B$700, but if you know the price you can bargain n if not satisfy u can go away or to another place. He normally not available in the day time and will ask his brother to fetch if u called him, never get to his older brother, taxi same car.. price is totally different (like day and night; his older brother can charge you B$2000 for a full day trip compare to him that was only B$200).