Switcheroo is a lightweight taskbar for Mac that works with the Dock or can replace it. It automatically hides background programs, supports drag-and-drop, and can launch and quit applications. Its main features include launcher items, 7 Aqua themes, "Hide Others" function, drag and drop support, contextual menu support, hiding, and low memory/CPU footprint.
Wineskin Winery creates Mac OS X ports/wrappers for Windows programs/games, with an easy-to-use GUI, integrated Wine, X11 and an installer.
LiquidMac uses a particle system to imitate liquid and responds to laptop orientation.
