Hierarchical Address Book & Dynamic groups

Hi,

I have an organisation with almost 500 users and I want to configure HAB.

My problem is that HAB relies on distribution groups. As you know distrbution group membership management is a manual porcess. In fact I'm using mainly dynamic distrbution groups to get benefit of my OUs..

Is there a way to make HAB more easier to manage? I already know that it is impossble to use dynamic distrbution groups in HAB.

Thank you!