Spline Hygiene, Second part of the spline tutorial by Victor Navonne is up. It talks about advance techniques in how to make your spline work for you. Really great tutorial.
Victor Navonne posted some great tutorial on how to use the graph editor, "Splinophobia". Don't be afraid on those spagetti graphs on the editor, take one step at a time. Read the tutorial, it would be worth it in making your animation real sweet.