Ben, based on your credentials, I personally think you should look into teaching business English to adults in South Korea. Check the Seoul newspapers--I bet you'll easily find a job with a company that wants its employees to learn English.

As far as getting a job teaching English at a university, you may be fine with your MS. You may not, though. Universities in SK may want an MA in TESOL/TEFL. I'm betting you'll be just fine with your present MS, however.

Good luck.

RT