I recently learned that I actually have the ability to use the Gmail interface (and other Google applications) with my own domain name/s. In order to do this, I had to create an account at http://www.google.com/a/ and change some settings with my hosting provider. For the email, I only needed to change the mail exchanger records...which is the server that the mail gets redirected to.
Give it a shot! If you really like the Gmail interface...and other Google apps, but you would like to use your own email address and domain name, there is no sweat at all.