Multiple email addresses in Outlook 2003

I am proposing to have 2 email addresses that differ only in respect of the
text before the @ on two different Vista Home Premium p/c on the same home
network

Is it possible to getmail to each email address to only be sent to it's
respective p/c and not both (to sort on the portion before the @)

I set a new Pop 3 a/c up on the second PC from which I can send & receive
but was getting some of the mail for both addresses received on it

Thanks
Richard