Just a quick tip:
In IE 7, a new "search box" was introduced in the top/right corner. This box usually has a default search provider that searches when you hit enter, and a list of search providers you can use other times by clicking the "down" button next to the spyglass.
I just (trying to think of what the key command is to open the menu), tried "ctrl+down" to get the menu open and it works! (You know you're a geek when you can guess the key command to do someting and get it on the first try... But at least I'm a cool geek and share with others).
Try this: type a search (like "Cavaignac") click "ctrl+down", use the arrow keys to select a search provider and hit enter.
A few search providers I use:
- Yahoo
- Wikipedia (a must)
- Facebook