Email Announcer will notify you by announcing incoming email, hotmail, and meeting requests with your favorite Microsoft Agent character. Email Announcer also alerts you if an incoming email has a read receipt attached. With Email Announcer you don't have to stop what you're doing to see what just popped into the inbox and since all of the announcements and characters are customizable you can configure Email Announcer to work just the way you want!
More info:
hxxp://www.blindbat.com/