I love Kobold Quarterly magazine! Although the magazine itself is heavily focused on the Pathfinder and D&D 4th edition games, the material is high quality and worth converting to Classic D&D. The website contents though, free for the taking, are often 'rules light' and easy to use in any game. The "Your Whispering Homunculus" column is especially fun and interesting.
Here's a couple links to the latest column entries, A Plethora of D12 Tables (parts 1-4):
Completely random, but that's the whole idea, right? Stop over and have a look when you get a chance, and check out the magazine too!