OK, seriously. If you are not a veteran kettlebeller, maybe you should not try the Snatch just yet. Substituting KB-C&Ps or Swings might be a safer alternative.
The hang snatch begins hanging between the legs instead of on the ground. It allows for the buildup of momentum. I'm not even going to try to post anymore snatch videos, as there are way to many out there.
If you're feeling comfortable with attempting the snatch, call or email me for some more videos.