Gmail email server is simply best and we are addicted to it. But as we webmasters have own domains, we need professional looking email address like user@Domain.com instead of me@gmail.com

Google guys have solved this problem i.e. you keep the all pro email addresses and use the gmail
server to handle all your emails. Setup is very easy, and anyone can do it within 10-15 minutes.
You may go to this Link Google Apps

You just need to do three steps to make it all work. First signup with them using the sigup form at the page link above. Second add your domain name and email accounts in Gmail server. Third and last step is to go to your domain hosting a/c, verify your domain ownership to google by uploading a simple html file and editing the MX entry for your email server.