Well, let me let you in a little secret and some big news.
The little secret is that I've been using a "special" version of Gmail as my work e-mail client for a while now. Having used regular e-mail clients all my life, I was a little skeptical about the web mail solution. But it took me little time to realize the benefits. Not only the everywhere access (since it's web-based), but there's no more "foldering" at the end of the day, finding e-mails and attachments is a snap and... well, the speed! My inbox holds about 10 gigs of mail, and it's still as fast as when it was empty. Try that with your regular e-mail client!
Now the big news… today we're announcing the launch of Google Apps for Your Domain, a combination of GMail + Calendar + Talk that small organizations can brand, customize and use. And this is just the start! We expect to release an enterprise version by the end of the year that will have the functionality larger organizations require.
Isn't it time everyone at work loves their e-mail, just like they love Gmail?