I'm sure you guys (gals) see this question all the time but I'm going to ask again simply because some things may have changed. My wife is looking for Christmas gift ideas for me and I figure a good pocket knife is something I would use quite a bit. I used to carry a really cheap POS and used it all the time. I figure I should go ahead and upgrade to something better. Where can I read about the different metals, shapes, etc. to educate myself? After a little bit of browsing, definitely a non serrated blade. And, if you had to have one do it all knife, what would it be? (<$200 please).