Dion,
Currently, there is no way to "slipstream" Windows updates into an image, or along with the image deployment, but there is a more effective solution than a complete rebuild of the image. Here is the method I recommend:
1. Create your model machine with the appropriate software load.
2. Use Ghost to make a backup image. By this, I mean an image created without using Sysprep.
3. Make a deployable image (with Sysprep).
So now you have two images, one backup and the current deployable image. After Windows updates are released that you deem necessary, here is the method for updating the image:
1. Deploy the non-Sysprepped backup image to a machine.
2. Install appropriate updates.
3. Recreate the non-Sysprepped backup image. This replaces the backup image made in #2 above.
4. Make a deployable image (with Sysprep). This now becomes the current image for deployment.
This method has several advantages. First, you don't have to duplicate the tedious work of having to rebuild your basic image. Second, reverting to the backup image prior to updating keeps the Windows rearm count from increasing with each update (the rearm count is the maximum number of times Sysprep can be ran on an installation of Windows).
Thank you,
Randall Newnham