"Hands-on Start to Mathematica" is a free, two-part online screencast that introduces Mathematica basics to get you started with your first calculations, visualizations, and interactive examples. If you haven't already, be sure to check out Part 1 here: http://url.wolfram.com/4x~hne/

Many students have asked for more in-depth training, so Mathematica now also offers "M10: A Student's First Course in Mathematica," a self-paced video training course providing step-by-step instructions on the basic features of Mathematica for students. Through the included videos and practice exercises, students learn how to navigate the user interface, build calculations, create graphics and dynamic models, work with data, and more--for under $30: http://url.wolfram.com/4-iH-./