In the Old Benoni, white has to be careful not to try too hard to hold on to the extra material given up by black or he might just fall for the Old Benoni Trap.
For more traps check out http://www.thechesswebsite.com/chess-traps/index.php
Chess Software used in this video can be found at http://www.chesscentral.com and http://www.chessok.com