http://www.youtube.com/watch?v=ZQHctReqxXw&feature=related
Not really a trap but may be useful:
There are a few traps in the Steinitz Defense. If Black is not careful, he can run into trouble. In this game, White traps Black's Queen.
http://www.youtube.com/watch?v=ZQHctReqxXw&feature=related
Not really a trap but may be useful: