Hi welcome! :attn:
You should get your feet wet with some of the free tutorials here. Phillip and David and Peter are excellent LW pro's.
http://www.simplylightwave.com/movie...html?cat_id=23
After you try a free tutorial or two you should try one of the big ones. Trust me there is nothing quite as cool as modeling a 10+ Hour tutorial with one of these LW pro's. You will learn a ton if you tackle the Mclaren or one of the character tutorials.
Welcome again and feel free to ask any questions about LW or the tutorials or anything!