Hey guys, After a neighbor was robbed while their entire family was home, I decided that I needed to step up and take the role of protector of the household, so I've decided to buy a handgun (I'm totally new to firearms, so don't hesitate to make suggestions or correct me if I'm wrong; that' how I learn!) I've been searching for a good home defense handgun (parents were scared to death of shotguns.) My price range is $600 or under. Here's what I was thinking: .40 S&W, 12 rd. or greater capacity, at least a 4in barrel, and, most importantly, AMBIDEXTEROUS CONTROLS (or at least the ability to have a gunsmith switch them.) Here's what I've come up with, in no particular order: 1. Beretta PX4 Storm 2. S&W Sigma 3. S&W MP 40 4. Steyr M-A1 5. Springfield XD 4" 6. FN FNP-40 7. Glock 22 (maybe 23) 8. EAA Witness First of all, are all of these ambidexterous? I'm a lefty. Which one(s) do you guys recommend? Anything I'm forgetting? Since it's for home defense, should I go DAO? Should Picatinny rails be a deciding factor? Anything bad about polymer frames? Would a ported gun really blind me if I fire it in the dark? Any suggestions would be great. Thanks!