Auto signature with Outlook and Exchange 2007

I was looking for a way to create a custom signature for all users within our company. Unfortunatly with Exchange 2007 there is no way to achieve this, besides adding a Disclaimer with a transport rule.

After searching I came accross a login script with wich you can create an automated signature based on Active Directory information.

Maybey a nice addition in Exchange 2007 SP2??