Lots and Lots and Lots and Lots of ammo, a good sense of self-criticism, well constructed drills (try pistol-training.com) and, well....more ammo! The Todd Jarret video covers grip, stance is a bit of a no brainer (face the target square and try not to look like your on the privvy). Oh yeah, and shoot more ammo than you ever thought you could - you should buy a reloading set up. One thing I did notice in the video, you're pretty tense through your shoulders - rolling them forward and 'shrugging' them up, that puts a lot of tension on the neck muscles, not good. Try to relax the shoulders a little it'll steady the platform that the gun is on.