While poking around on codeplex, I noticed there is an update to the SharePoint Branding Tool.

This tool can be used apply the following actions for multiple Site Collections, and Child Sites:

• modify Themes,
• modify MasterUrl,
• modify CustomMasterUrl,
• modify SiteLogoUrl,
• modify SiteLogoDescription,
• view various properties at a glance

Looks kinda cool – might have to try it out.

Click here for more info (Douglas Leung)