QuickLook

Leopard users know about how useful QuickLook is when you want to quickly get a glimpse at a photo or a video, well until now looking at folders just showed you a big image of your folder icon. With this pretty cool plugin you get an added functionality where you can see the contents and information about them. Click the picture (or here) to download the file to install this neat addon.

To install: open your hard drive/Library/QuickLook and put the component file from inside the zipped file in this folder and log out. When you log back in QuickLook into a folder and check out the goodies!