I just recently started trying to learn the language. Like many others have suggested .. learn Hangeul (Korean alphabet) first it makes it so much easier when you are trying to pronounce words. And it wasn't as difficult as I thought it'd be! I used "Korean Letters", which is an app available for free through iTunes.
Check out
http://www.youtube.com/user/sweetandtasty?feature=watch. She features a Korean word (ex: "I'm sorry" & the different ways to say it) or topic (ex: Korean foods or articles of clothing) every week. Her videos are well done and very entertaining.
TalkToMeInKorean.com is what I mainly use. Their podcasts and corresponding PDF notes have helped me a lot. I sometimes listen to their lessons on my commute to and from work. The way they explain things is very easy to understand AND its free!
My family and I ate at a Korean restaurant last week and I was very proud to be able to order my meal in Korean :)