Another vote for S&W DAO
(Man, if you really want to hear about these guns, go post on the Smith forum and ask to see some of SmithNut's DAOs.)
I've got a 6946 that I got from a friend at a good price. Initially, I wasn't hot on the idea of a trigger that's partially cocked (bad experience with a Glock that would suffer from light strikes when schmootz got in the striker channel from high pressure chambering in .357 Sig), but I have never had a FTF with the Smith (in probably walking up to 2k rounds about now). The heavy hammer whacking the firing pin provides additional insurance for primer ignition that the low-mass Glock striker just can't in a dirty gun situation. Frankly, I have become a convert - this is a trigger system that works, and it's idiot-proof. In a high-stress situation, idiot-proof is probably good.
Well, wait a minute . . . maybe it's not idiot-proof. There's no trigger-disconnecting external safety. But if one can handle a revolver safely, one should be able to learn to handle a S&W DAO safely.
Anyway, thumbs-up from me.