Actually i'm currently learning Korean online at talktomeinkorean.com Go take a look. It helps a lot. It organises the lessons into different levels, and each level have around 20 lessons:) Teaches you almost all the things you need to know and they joke around with each other too:) It is quite fun. There are audio and video lessons and there are also free pdf and mp3 file for you to download and learn. There used to be textbooks too, but are all sold out already(I think):) Have fun learning Korean. Hope this helps:)