how about the kershaw rake? its a nice knife for well under 100, and the blade is made up of two different steels, the bottom edge is D2 while the rest of the blade is sandvik. not super steel but an interesting blade for sure. its a very underrated knife.
http://kershaw.kaiusaltd.com/knives/knife/rake
I got one of those recently and like it...I notice the price seems to be going up lately though(and several places have been out of stock for awhile), before long it looks like it will no longer be a less than $100 knife.