Have you given any thought to the Spyderco Endura or Delica? I looked around for the Navajo, and the Spydercos seem to be about the same size and might be a little cheaper in cost, but will be just as good as the CRKT your wife had. If you want the open frame, and the size of the Navajo, look at the Spyderco Para Military. I doubt you will be disappointed with almost any knife you select, I just prefer Spyderco and I know the most about that particular brand.

Good luck and enjoy!

Garrett
_________________________
On occasion of every accident that befalls you, remember to turn to yourself and inquire what power you have for turning it to use. - Epictetus