I just bought my first decent folding knive for work (Kershaw 1600ST)after years of using really cheap knives.I am so impressed with the quality that I would like to buy another for carrying when I'm not at work,and maybe collecting them also, so I started doing research and soon discovered the endless choices in not just manufacturers but also designs and blade material.The next one I buy I would like it to have some kind of "Assisted Opening" and be under 4 inches long when closed(like the Kershaw Black Chive)I would be thankful for any suggestions anyone has.