TotalFinder (for Mac)

TotalFinder increases the usability of your Finder space in Mac OS X 10.6 Snow Leopard and 10.7 Lion.

TotalFinder adds the ability to create tabbed workspaces in the Finder.

Once installed, TotalFinder's settings show up in your Finder's Prefernces pane.

Another feature of TotalFinder (for Mac) is Dual Mode, which lets you see multiple Finder spaces at once for easier drag-and-drop actions for files.

TotalFinder for Mac has a number of options to give you more control over how your Finder space appears and is used.