Are you near a shooting range that rents guns? if so rent both and try them. I'm issued a .40 glock (mdl 23) and had to retire my 1911 <img src="/images/graemlins/frown.gif" alt="" />. It's reliable, and accurate, and "cop proof". I can't shoot the same gun in 9mm for anything. The ballance is diffrent. I can shoot the baby 9, but not the mid or full sized ones. the recoil felt diffrent also. Please try them both and when you buy one spend another $275 or so and get a Ciener .22lr conversion unit so you can shoot to your heart's content and get good with it.

Have fun in choosing, and Stay Safe.