The first market to experiment is the one closed to Taladya Homestay, we go there almost everyday as you can find anything there to make good thai food. You will feel really the Thai culture in there as there is very few foreigners coming
Then, there is the famous Night Bazaar Market, there you can find very nice and cheap clothes, it is the bargain hunter paradise; It is open everyday up to midnight. Even if you don't like shopping, Night Bazaar is an amazing experience.
The flower market (Ton Lamyai) along the Ping River displays flowers of all descriptions from roses to lilies or Orchids, in hundred of varieties of colours.