Like Skeetgunner said, drop in the trigger group, and that will give you a lighter trigger, better for target shooting. I suppose you could go all the way next and mount the expensive scope, target barrel, fancy stock, and spend well over a $1000 dollars on it. Or practice, practice, practice wth the cheap .22 ammo until you get better.
I have the trigger group ($220) and now feel good about my shooting - but can get better, and keep practicing. Do not dismiss the shooting fundamentals - a flinch is still a flinch in a $200 dollar gun, or a $1000 dollar gun.
And have fun!