Maybe others will disagree, but IMO the $100 price point is kind of a tough one. I would personally look at the Spyderco Delica 4 in all Stainless Steel, currently on Amazon for $77. 3 inch blade, check. Fit for office carry, check. Pretty good steel for the price point, probably about as good as you're going to find for around $100. If you just want an everyday mail opener type deal I would look at something like the Kershaw Leek @$50 is a solid choice. Another knife to consider checking in at $119 is the Benchmade mini-barrage 585 drop point. Now this doesn't have the G10 handle, or the super high end steel, but the 154Cm used on the 585 is definitely one of the better mid range steels. Take a look at a few of the different designs on the different site and some people suggest and let us know what pops out at you and maybe we can help steer you a little bit better.