Heres a link to a thread about LST and topping.
It as several pics of lst techniques for you to check out

http://boards.cannabis.com/showthread.php?t=76552
Firebloom Reviewed by Firebloom on . NEED HELP PLEASE hi just staryed growing my first plant in a small closet using a flouresnt light its got to about a foot and a half. but the two lowest leaves have just turned yellow and all the tips of the other leaves have curled down can any one help....... Rating: 5