Yes, just go to their site and register, choose your email address, password, etc.
You normally get the option to view the details, but even if they just download a file to your computer, all you need is the dial-up number and password. Copy these to your other computer.
Because these accounts are location independent, you can have the same account at both locations if you wish.
You can also view and download incoming email through your broadband connection, if you wish, but you cannot send email from that address via broadband.