Office 2003 Prof.

Overview is available here:

http://office.microsoft.com/en-us/assistance/HA011380111033.aspx

You will need to download the Office 2003 Resource Kit available here:
http://www.microsoft.com/downloads/details.aspx?FamilyID=4bb7cb10-a6e5-4334-8925-3bcf308cfbaf&DisplayLang=en

Part of the kit is the "Custom Installation Wizard" which will help you make an transform that can control every aspect of Office 2003 install including client customization settings.