Don't know if this has been covered in a thread, but I "found" the most wonderful tool a week ago... a Smith's knife sharpening set. (And I'm told there is one or two other brands with similar products and good reputations.) Heretofore I've been such a neanderthal that I didn't even realize such as these existed. I've just been plugging along with my various arkansas stones and files, doing a fairly mediocre job of putting an edge on my blades. I happened to ask the salesman at Gander - while he was looking up something else for me - if he had a suggestion for how to sharpen a partially serrated Spyderco that I have (older one, love the knife), and he put me onto this set. Has coarse and fine sets of flat diamond hones, a triangular stone, and a round diamond hone, and clamps the back edge of the knife in order to provide an angle guide for the hones/stones. Puts an awesome edge on a knife.
Probably old news for most of you, but it was a beautiful thing to find for me.