Any sites like livemocha.com?

Hey. I am in the process of learning German, and am using many resources to help. One of them I have found is livemocha. I really enjoy the role play and getting “graded” on the writings and taking quizzes and such.

The only problem is that it runs a bit expensive – $15 a month is a bit more than what I’m looking to pay. So if any of you know a good website like livemocha that’s a little cheaper (or free) please tell of it.