Installing SharePoint 2010 complete install using local accounts
You want to install SharePoint 2010 complete install and use local accounts (instead of Active Directory accounts).
You receive the following error message:
Error Message: The specified user is a local account. Local accounts should only be used in stand alone mode.
The workaround is to use a PowerShell script instead of the Wizard, as explained at: http://sharepoint.microsoft.com/blogs/fromthefield/Lists/Posts/Post.aspx?ID=112