List of Free code NSWindow
NSWindow subclass that allows you to apply Core Animation effects.
A NSWindow and NSTable View to simulate the appearence of a NSMenu.
Better NSWindow animations using a layer.
Multiple NSWindow Example for StackOverflow.
An NSWindow subclass that can be attached to the menu bar.
iWork style animation for NSWindow instances from a thumbnail to desired frame.
Cocoa example of an NSWindow animating with a drawer (like sparrow does).