Ramkhamhaeng univeristy offers a good program for students from abroad or for people living and for those who are working here in Thailand.
The benifits of this program is, if you are a teacher and do not have your degree, this is one of the best opportunities to use. I have seen it advertised in the Bangkok Post for international students to pay only about 30,000 thb down from the 50,000 thb orginally posted on Ram site. A price of 30,000 is about 1 months pay from your current job, but in the long run, it might be worth it.
I do go past there sometimes and I do see some International students there.