Possible to image a pc and remove cd-key

[teaboy5]

I have to image around 200 pc's which are being sold to our staff. Is it possible to image the pc and then onces it done it will remove the key and ask the user to input a cd-key on next reboot, which will be on the side of the computer?

 

[teaboy5]

You can enter the key using sysprep, but i want it remove after the install so on boot up the user can simply enter the key on the side of the computer.