Cool, FREE Outlook Add-On

Checkout Xonbni...I've been using it for about a month now. Once installed it's a thin tool bar pane when you open up Outlook. It does a bunch of things with your email: supplies contact phone numbers, looks-up email threads with particular contacts quickly plus file attachments, and has some cool social networking features.

Get it for the email search capabilities alone. Find an old email in seconds instead of the less than fast "Find" feature in Outlook.