Eye Candy for OS X: TransparentDock

I just formatted my TiBook drive (more on that later) and it’s amazing what starting from scratch will do for your perspective on things. I am beginning to love all of the new UI enhancements and tweaks out there for OS X, especially utilities like WindowshadeX and TransparentDock (an AppleScript that makes the dock background transparent) and the beautiful anti-aliased apps like Omniweb and Adium. What are your favorite anti-aliased OS X tweaks and apps, strictly on the basis of aesthetics?