To reply to the question posed to cbxer55 about the Military (or for that matter, all Spyderco's) liner-lock. No worries. Pretty freakin solid though probably not in the super-lock category like the Cold Steel Tri-ad or other such locks. More than enough for me and I haven't handled a bad one yet (out of about 10 Millies that have passed through my hands). Never spine-whacked one nor see the point of it.
If you don't have a Military, there are occasionally passarounds or the like to test it out, or you could just buy one - but it is a rather large folding knife despite its lightweight, ergonomic nature. Also, the blade-to-handle ratio is not great if that is a prime factor in your criteria for folding knives.
Spydercos specifically:
~$100: plain Military's, PM2's, Gayle Bradley. The Sage and Chapparal series are great buys too for smaller-sized knives though the higher-end ones are quite out of what I consider a reasonable price-to-value range, that said, all of Spyderco's knives are generally worth the money, just maybe not as much functionally. Diminishing returns and all that depending on your requirements.
~$75: ZDP189/FRN Stretch.
~$50: Endura, Delica, Salt, Rescue series and smaller knives like the Cricket, Manbug, Jester, Dragonfly, etc.
