[Deviruu]

Oh my, I don't think I'd be too much help depending on how much you know, but I am currently learning Japanese as well.

I study independently and after much of my internet lessons I studied with "My Japanese Coach" via DSi and that actually does help a lot.

Pro: You get lost, you can go over it as much as you'd like. Variety of "games" to cram that Japanese into your noodle. Also comes with a phrase book and dictionary built right in.
Con: It can become quite confusing with certain lessons.