I think there is a reasonable amount of information in the post from Prince that is misleading .
You cannot get a long time visa with less than 800,000 Baht that has been in a thai bank for 3 months,you cannot rent an apartment for 2,000 baht a month, you do not need to pay some one to talk to you and the tourist police have nothing to do with your income , etc ???? I left Thailand almost 3 years ago so i am not up to date with the constantly changing reqirements . Colin