One criticism I've heard about Sigs is tht they require a lot more maintenance than the Glocks. Is this so?
Personally I don't like Glock.. My brother had one and it had jamming problems... I know a lot of police that swear by Sig... I have fired them and like them very much.
What ever you buy, take it to the range and wring it out with a couple of boxes of ammo. Ten years ago, my new Glock .40 jammed on the first box of quality ammunition. A smith in St. Paul polished up the interior, added Trijicon sights and lightened the trigger a tad. The next 30-40 boxes of ammo have been without incident.
Well, in my shooting club a guy (an instructor, BTW) had TWO glock barrel blown and replaced at the factory. I have nothing but good things to say about CZ-75 - and it is robust enough to work with hot +P and +P+ ammo. (I pumped some 30000 rounds through mine - and the only thing I ever needed was a replacement sear). 9mm with expanding (say, Hydra-shock, or Cor-Bon) projectile loaded to +P+ should compensate for lower weight.