Check this site out. İt´s great for learning Hangul. İt helped me a lot. Have a look under introductory Korean. There´s also lots of different stuff to find there, although İ don´t know if it´s good. İt looks very nice though. Might be useful as reinforcement.
http://hompi.sogang.ac.kr/korean/index.html
Doei,
Martijn
