Here is a link for those who want to improve their trigger pulls as well as target acquisition and practice drawing on the clock all from their home and all dry firing. There are 4 different training choices. Lots of fun and a bit addicting.
http://www.predatortactical.com/cart.php?m=knowledgebase_detail&id=5
http://www.predatortactical.com/cart.php?m=knowledgebase_detail&id=5