Apply different password policies to specific computers

Hello,

My password policy is set in the default domain policy (expiration at 80 days, lock after 3 invalid attempts).  However, I need to block this password policy for a specific number of member servers in the domain, and have an alternative password policy set in its place (e.g. expiration at 120 days, lock after 10 invalid attempts).  The servers in question tie into an extranet application.

My question is - can I block the default domain policy for a specific group of servers (not users -- servers), and somehow override those password policies with "custom" password policies for that specific group of servers?

Thanks!