WOW.

This is an AWESOME resource.  So much so that I capitalized, bolded, italicized, AND underlined AWESOME.  I just found a page on Technet with TONS of Visio diagrams for every type of SharePoint Deployment/Topology/Project.

Head on over here: http://technet.microsoft.com/en-us/office/bb310619.aspx and scroll down to where the product says "SharePoint Server 2007"

Some of my favorites include (and there are many more on the site):

Solution

Description

Products

SharePoint Server Application Security

Download this reference to learn about basic principles of SharePoint Server security, default groups, site-, list-, and item-level permissions, and more.

SharePoint Server 2007

SharePoint Server Backup and Restore

Download this reference to learn about supported types of backups, backup and restore tasks, content recovery, and more.

SharePoint Server 2007

SharePoint Server Topologies

Download this reference to learn about topology design principles, example topology implementations, and more.

SharePoint Server 2007

SharePoint Server Baseline Site Hierarchies

Download this reference for example site hierarchies.

SharePoint Server 2007

SharePoint Server Customization

The purpose of this model is to showcase the top SharePoint Server 2007 customization areas and what features a user can modify to meet their objectives.

SharePoint Server 2007

SharePoint Server Database Administration

Download this reference to learn about database administration in SharePoint Server.

SharePoint Server 2007

SharePoint Server Enterprise Content Management

This poster presents the features in SharePoint Server 2007 that support enterprise content management, introduces the predefined content management sites, and illustrates how content moves from one site to another.

SharePoint Server 2007

SharePoint Server Extranet Topologies

Download this reference to learn about perimeter in proxy, back-to-back perimeter, and more extranet topologies.

SharePoint Server 2007

SharePoint Server Inter-Farm Shared Services

Shared Service Providers can be configured to provide services to multiple SharePoint Server 2007 farms.

SharePoint Server 2007

SharePoint Server Search Administration

Download this reference for the search administration process, search topology, and more.

SharePoint Server 2007

SharePoint Server Shared Services

Learn about shared services, provider architecture, recommended topologies, and more.

SharePoint Server 2007