Just stumbled across this blog entry talking about the new Sysprep functionality in SQL Server 2008 R2.  I have to say I am thrilled to find out that you will now be able to use SQL Server sysprep along with Windows Server sysprep to create sysprepped machines with SQL Server installed! I've been working on a scripted install of a SharePoint 2010 development machine for a client and this just made my job A LOT easier. Now i can abandon the SQL Server 2008 + SP1 + CU2 slipstream install that I've been putting together and just script the SharePoint portion of the install. if only there was a SharePoint sysprep...