This is one of those areas where I, lacking any artistic or User Experience skills at all, struggle with my SharePoint Development skills. I am really, really bad at creating good Master Pages, so I was happy to find this list (Found here).
What are Master Pages? As defined from the Office site:
Master pages are a feature of ASP.NET 2.0; they work the same way in Windows SharePoint Services 3.0 and Office SharePoint Server 2007 as they do in ASP.NET 2.0. Using master pages, you can create a single page template and then use that template as the basis for multiple pages, instead of having to build each new page from scratch.
Microsoft has made available a package of four sample master page sets that were built using new CSS and Master Page editing tools within Office SharePoint Designer 2007. These sample master pages:
- Enable you to apply a pre-designed style and layout to SharePoint sites
- Work with the forty new Application Templates for Windows SharePoint Services 3.0
- Provide a starting point for deeper SharePoint site look and feel customizations

↑ Grab this Headline Animator
Here's is an examples:

They are freely downloadable: Click here to download
Enjoy!
~Robert Shelton