Google’s Desktop Search – Without it I’d Be Lost

I’ve used Eudora’s email program for MANY years, but recently switched to Microsoft Outlook on one computer and Mozilla FireFox on my notebook. My Outlook email has THOUSANDS of email messages that I try to neatly sort and store in a few dozen folders but every so often I simply cannot find an email I am looking for.
Google’s desktop search to the rescue. In the background it automatically indexes your Outlook mail box and QUICKLY finds an email message, just like you’d expect from…Google!
Today I was searching like crazy for a recent email. Outlook couldn’t find it. I turned to the Google desktop search and had my email in seconds.
Which desktop search do you use? Which one do you just LOVE?