Your email will still be the same. You are just using Google's services to access it. Trust me, there is nothing better than google when it comes to email. Ask the 260 million people who use it
You would even have a gmail interface, so no more need for crappy email clients (of course if you prefer you can continue to use them). So it would be gmail.whateveryourdomainis.com and would look and work just like gmail, but with your own email address.
If you like, I can probably even help you set it up. It's not that complicated, and there are steps to follow, but I have done it so many times it would just take a few minutes. PM me if you need a hand.