Hapkido and University Korean Courses

Hi, I have been thinking about learning Hapkido and upgrading my Korean language skills. I live near Guseo-dong, and I was wondering if there were any adult Hapkido classes available in this area. Doesn't need to be in English, I have pretty functional Korean. Also, I have been thinking about taking a university course in Korean. Is there one at PNU? Also, can it be used towards a language credit in the west? Do they offer the Korean Proficiency Exam? How much is it? I know this is a lot of questions, but if you can help, thanks. :)