Sorry, 500 won't win you any prize: I had 2,451 bogus Hazel plist files in my Preferences folder!
I have been having problems with Hazel for the past month (roughly when I installed Snow Leopard, but I'm not sure that's when it started) in which Hazel absolutely refuses to process rules on one of my folders. This folder has been set up in Hazel for 2+ years and working fine. Now all of a sudden Hazel just ignores all the rules assigned to it, even though every other folder continues to be monitored just fine. I exported the rules, deleted and readded the folder and reimported the rules, but it still ignored it. Then I deleted everything and manually recreated the rules and Hazel still ignores the folder. It is a normal folder in my home folder on my internal HDD, so there are no strange external or network drive issues here.
Anyway, I decided to nuke all of Hazel's preferences and App Support files and do a fresh install to see if I could get it working again, and that's when I discovered that I had 2,451 Havel plist files. Not sure whether this is Apple's bug or Hazel's bug, but there certainly seems to be a problem there! The only other app that had created similar bogus plist files was QuickTimeX. It had about 60 plist files, but nothing like Hazel!
Drew