The Cadet is a great choice. Also give the Victorinox Bantam Alox a try. I'm a suit and tie guy in a very conservative corporate environment, and I carry a Victorinox Bantam Alox every day. I've given 5 or 6 of them to work buddies who never carried knives before, and some of them have started carrying them, or pulling them out of their desk drawers, to open mail or boxes.
TwistyRoads