Windows only freeware Windows Unattended CD Creator 1.0.0 just came out. 

Do you want to make your own customized windows bootable CD? If so, this tool is your swiss army knife. Windows Unattended CD Creator allows creation of a boatable ISO image, Integration of service luggage, Creation of user accounts, and Integration of Drivers, Hotfixes, Patches, and Software.

The program was tested meanwhile with German Windows 2000/2003/XP Home/Pro and English Windows XP pro x64 edition.

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Features:

• Creation of a bootable ISO image
• Integration of service packs
• Creation of user accounts
• Integration of:
  Drivers
  Hotfixes
  Patches
  Software

Conditions:

• Installed .Net Framework 1.1
• Windows 2000/XP/XP 64/2003 CD (as source)
• A Program, which is able to burn a iso image on CD/DVD
• CD and/or DVD burner