If you're looking for a mid-sized, easy-to-carry, Spyderco, consider the Native Light Weigth as an alternative to the Walker Light Weight.
You can find them for about the same price, but you are going to get a knife with a loyal following that's outfitted with a CPM-440V blade (make sure it's the newer version).
Even though it's a lockback, one handed opening AND one handed closing closing is a snap. Looks great too...