good prices on spyderco here through the end of august:
http://store.yahoo.com/cinemasupplies/spyderco.html
Thought I'd point y'all there since you don't usually think of a film supply store as carrying weaponry
I got a spyderco endura several years ago, and it's a GREAT knife.
BTW, this isn't a plug, I don't run the site, but it's a good place to get knives since they're often on sale.