If you've ever wanted to do a close, guided reading of Marx' work, you probably couldn't ask for a better teacher than Distinguished Professor of Anthropology & Geography David Harvey. Not only has Harvey has been teaching Karl Marx's Capital for more than four decades, he's willing to meet you on your schedule and for free! In other words, he's developed an online course that will take you through Volumes I and II with video lectures.
There's also an option to download the lectures as audio podcasts -- perfect for long commutes on your way to sell your labour. The online course, Reading Marx with David Harvey, is available through Harvey's website. Harvey's site also offers a lecture series (6 videos) on "Marx and Capital: The Concept, The Book, The History."