I don't own Adobe Creative Suite 3 (CS3) but I know there has been a lot of debate about the icons Adobe selected. I have no opinion. Still, I am sure when I get CS3, I will be considering these replacement icons. This list was inspired by this post on the photoshopsupport.com blog.
Brett's Work In Progress set
Adam Betts' set (which uses the style of the CS3 box art) for the Apple Dock (he has a few PS tutorials too)
The Window port of the above set by the-ace
Louie Mantia's set (similar to the above, but cool in a different way) who has other way cool icons
KoreGraphik has a set based on the official CS3 icons, but enhances them
Also:
Watercolor and Splatter Brushes (free) from BittBox (go there for great Illustrator tutes)
Blog of Adobe's John Knack
Creating a candle/match glow in PS (I needed this a week ago!)