Windows Live Mail Desktop is an application that will let you get e-mail from multiple accounts in one place.
You can add multiple accounts, both Web-based ones (like MSN Hotmail, AOL and Gmail), and POP3- or IMAP-enabled accounts (the kind of e-mail you usually get on your desktop with an e-mail client like Microsoft Office Outlook). Powerful security features will help protect you against junk e-mail, viruses, and fraudulent “phishing” messages for all e-mail that you get with the Windows Live Mail Desktop Beta software — no matter what account it comes from.
Windows Live Mail Desktop Beta is designed to work with other MSN and Windows Live services. Once you’ve logged in to the program, we can give you seamless, one-click access to MSN Spaces, MSN Messenger, and all your Windows Live contacts.

I haven’t tried it yet, But it looks promising..

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