We just launched a new Design Gallery for ASP.NET MVC websites at:
http://www.ASP.net/mvc/gallery
You can vote on the designs that you like and that you don't like. You also can contribute new designs of your own.
After you download a design from the gallery, you can use the design by following these steps:
1) Copy the files from DesignTemplateCS or DesignTemplateVB folder into your project (use DesignTemplateCS for C# projects and DesignTemplateVB for VB.NET projects)
2) Do a search and replace the string [YourProjectName]. Replace [YourProjectName] with the actual name of your project as displayed in the Solution Explorer window.
This last step is necessary...