it wasn't that difficult to do. i was scared at first because i didn't want to mess up my T/C but i have absolutely no regrets now! this was definately the best upgrade i have ever done to a rifle, the trigger went from 6.5 pounds to 2-2.5 pounds of pull!i used this company...

http://www.bellmtcs.com/store/index.php?cid=456&

they also have a tutorial on this site to show you how to do it step by step. my only suggestion would be to have a digital camera with you. take a picture of the action after each step so you will have a reference to fall back on. some of the pictures on the tutorial are small and dark.