H2O Man,
When I decided I was going to start carrying mid last year, I spent a lot of time shooting everything from J-Frame revolvers to tiny Kel-Tec and Karr pistols to mid and full frame autos from every major manufacturer. Finally I shot a G36 and was immediately sold. Small enough to carry every day, easily concealable, a pleasure to shoot, and I figure if I need more than 7 (6+1 in the chamber) in the gun and my backup mag in my pocket, today was my day to leave this earth anyway.
Mine has the factory night sights, I use Federal HST in it but practice with Winchester white box. I carry in a Milt Sparks "Versa Max II" on a Mitch Rosen belt and couldn't be more satisfied.
I've got about 700 rounds through the gun, only issue was stovepiping by friends with poor grip. It's never given me one problem, and I shoot it plenty well for any self defense situation.