I've been doing a lot of reading on firearms and stumbled across your site. I am a total newbie to firearms. I had no exposure growing up, parents were hippies. Ive taken a couple of courses (Firearm Safety with Advanced Pistol Training Techniques and a NRA Basic Pistol Course)and starting to shop for my first gun. I've been enjoying all you posts and reviews. I've fired two Sig Sauers (9mm and .45) but can't remember the models. I really enjoyed the .45. I've started looking into the Glock 21 and Sig p250 (cool concept with interchangeable calibers). Any thoughts?