I have fired about 500 rounds through a S&W 357 revolver and want purchase a semi. I have read enough threads on here to know that the Sigs and Glocks I pine over are not the high end guns I thought they were (simply according to price). I am looking to learn more, carry, and would like to explore more as a shooter. I favor 9mm and 40 cals, but could be talked into something else I suppose. I am taking a one on one personal defense class with a former marine and retired cop who swears by Sigs. I want to hear opinions about my first purchase. I am leaning to the previous mentioned Glocks or Sigs and want to spend less than a grand. thanks gents.