+1 to everything Iowegan said, except the grips. I'm not a fan of the finger grip type ones, and I find that when it comes to a 1911 the standard model fits me great. Go to a match and talk to as many guys as you can and hold and feel and possibly shoot as many as you can. You may find that a standard or A1 grip fit you better than an over molded style, and you find that the 3.5# trigger is a bit light to you for the one handed grip. Other than that, practice, practice, practice, practice, practice....
I did find one thing that helped me out a bunch was to go to the toy store and get a plastic toy pistol. While you are watching T.V. sit and hold it in front of you and keep shooting everyone on the screen. It helps build the muscles in the arms and hand.