Ryan at Cybernet has posted a great little greasemonkey script that gives you more bang for your (free) Google Search buck. It's called "Google Extra" and it utilizes the abundant right-side white space that a Google search normally gives you.
If you look at the search below on "Kosovo" with the script enabled you'll notice a number of areas that have been added to the return.
First, on the left column, is a short section of news returns and then, underneath, the normal Google search list. On the right column, which is normally just white-space you'll find an image section, followed by videos, Wikipedia and dictionary.com entry. [Note, I have an additional image group at the top of the left column. That's an artifact from another script or plug-in.]
You can re-order the right-hand column returns. Hovering over an image or video shows you a larger version of the image or thumbnails from the video.
Get the script here.