If, like me, you’re a Mac and PC user, then you’ll probably love RocketDock. It’s a freeware (!) Mac OSX dock for Windows (including Vista). Here’s are just a few of the features (from their website):

• Minimize windows to the dock
• Real-time window previews in Vista
• Running application indicators
• Simple drag-n-drop interface
• Multi-monitor support
• Supports alpha-blended PNG and ICO icons
• Icons zoom and transition smoothly

So if you’re a tweak freak like me or just like trying out new fangled widgets, check it out.