Sword & Fist? Better with the erratta. But it turned me off of spaltbooks in general.
Monster Manual II? Worth the price for the yugoloths alone. Strike that. For the arcanaloth alone.
Dragon #300? Not the most useful issue ever, but it's got my devious mind to thinking about the nature of evil, and all that. Excellent, given that my players are preparing to venture into the lower planes...
Gnomes? I'll try to keep this short. I hated them in previous editions of the game but resolved to give them another try in 3e. I rolled up a gnomish bard, which seemed to me like a neat character concept, but proved perfectly useless in application. I became the object of ridicule, which only served to make me want to play the character that much more. (I am stubborn and prideful. What can I say?) In the end, I was forced to concede defeat. Even now, I find myself trying to defend gnomes from time to time, but deep down inside, I know the truth. And to this day, the term "gnomish bard" is used in our group to denote something that is utterly useless in every way.