The top ten home cooking mistakes. The name of the post is something of a misnomer...it's really a list of suggestions to improve your home cooking.
2. A real knife. You can do a lot with a good chef's knife, and you can't do shit without one. It doesn't have to be an expensive model; America's Test Kitchen has recommended this Victorinox 8" chef's knife (or its 10" version, about a buck cheaper!) for years, although I have grown accustomed to the handles on my Henckels Four-Star knives. Buy a good chef's knife that feels comfortable in your hand, with a blade 8 to 9 inches long, and buy a honing steel to keep it sharp. Avoid home sharpeners, though, which "sharpen" your blade by destroying it.
(thx, andrew)