I have used several different night sights and like the Truglo the best--they have lasted longer for me. As to a light, I like the Streamlight/Insight since they can do double duty as a rifle light. No reason to spend the extra coin on a Surefire when the Streamlight/Insight does the same job AND you can get a SY blade with the savings.

Men you can't trust, women you can't trust, beasts you can't trust, but Bussekin steel you can trust