fyi, a MUST review list:
1. http://www.youtube.com/watch?v=sVpGi85HfnY
2. http://www.5min.com/Video/Using-a-Table-Saw-62008304
3. http://www.youtube.com/watch?v=nzZd-qWWlNE
4. and more: http://www.google.ca/search?aq=f&gcx=w&sourceid=chrome&ie=UTF-8&q=table+saw#q=table+saw&hl=en&prmd=imvnsu&source=lnms&tbm=vid&ei=R0CSTo-iHcXv0gGzqa1E&sa=X&oi=mode_link&ct=mode&cd=4&ved=0CFcQ_AUoAw&bav=on.2,or.r_gc.r_pw.,cf.osb&fp=6abf9067e18a60e9&biw=1366&bih=653
btw, I would NOT suggest having 那四个万向轮 for safety concern.