$$
Midrange
"My Friend" is not especially cheap, and the rooms are not the most characterful. Triple room w/ air con about 590 baht. One thing in its favour is the 24 hour fast internet access 30 baht per hour.
Sri-Trang hotel is close to the railway station on Rama 6 Road. They charge 450/550 baht for a fan/AC single room with TV and private bathroom. The rooms are clean and modern, and wireless Internet is free of charge. The staff is very friendly and helpful.