Youngcutter: Here are a few more considerations and a different take on some of the previous suggestions. I'm a contractor who use knives for working practically every day of my life.
The Microtech LCC is a fantastic knife but is too slippery for everyday working situations. Furthermore, the design does not include any sort of finger guard.
Benchmade products are excellent. I have owned several of the models mentioned and handled all the rest. I don't care for the ergonomics of the 710 but I still think it's a nice knife. The axis locks are the best choice of their different lines IMO. My personal favorite is the 735? with carbon fiber, not positive of the number but it was extremely comfortable, felt like an extension of your hand and had the axis lock. The 750 is not as good as a Sebenza, so save your money if you want a frame lock.
The Buck Strider is designed for punching through car doors, prying off hubcaps and penetrating ribs and sternums. It is excellent as a tool of war but not so good for opening envelopes and cutting string. After all, would you use a sledge hammer to pound in a nail?
Spydercos are great and you should buy one anyway. Heck, buy two, they're cheap!
The Al Mar SERE 2000 is the best choice for a daily working knife that I have heard mentioned thus far. It is rugged, totally ergonomic, has good finger protection, G10 scales for a nonslip and impervious to chemicals grip, high quality VG-10 stainless blade and locks up like fort knox. After enjoying mine for a few months I gave one to my Dad for his birthday last January and he was telling me last night that he has beat that knife mercilessly (he's a plumber) and he just cannot believe how it has held up. He went on and on that it's the best working knife that he has ever owned and is the nicest thing I have ever given him. For him that is saying a lot! Also, this knife has the deepest pocket carry that you can get in a clip. The newer models are available in black clip and the price is reasonable. I got mine for about $115 on the forums.
Hope that helps!
