Doug, you might also want to consider having Gmail grab your alaska.net emails so you don't even have to deal with two different clients.

Check out the instructions for Gmail's Mail Fetcher. It's all contained within Gmail itself; nothing to configure on your computer at all. It also allows you to send emails using your old email address if you want. It also uses the correct address when replying, based on what email address the original email was sent to. (Though you can configure that differently if you want.)