Deskbar
Key Features:
Search using Google, even when your browser isn't running
Preview search results in a small inset window that closes automatically
Access Google from any application by typing Ctrl+Alt+G
Use keyboard shortcuts for multiple Google searches, i.e., Google News (Ctrl+N),Google Images (Ctrl+I), or Froogle (Ctrl+F)
I always keep a task bar at the top of my screen (with autohide turned on) that has an address bar and my computer. I always wanted to put the google toolbar up there but couldn't. With the deskbar it works perfectly.