The 1.0 version of TigerDock for Mac is provided as a free download on our software library. The following version: 1.0 is the most frequently downloaded one by the program users. Our built-in antivirus scanned this Mac download and rated it as 100% safe. The application's installer is commonly called tigerdock.zip. The current installation package available for download occupies 2.3 MB on disk. This free Mac app is a product of Riotgames Production.
From the developer:
Is the New Dock in Leopard Annoying?
Change your dock from the new 3D-look to the old(more like Tiger) 2D-look or reverse.
And as a bonus you can make the items in your dock slightly transparent when they are hidden, so you have a visual cue that they aren't active.