Easiest way to rollout 200 clients

Hello,We have about 200 laptops that will be upgraded (replaced) due to lease expiry. We will need to swap the hardware during a 3-day meeting in couple of months. We are planning to create an image of the OS (WinXP) which will also include the basic installation of the Notes 8 client. What would be the easiest way to configure all these laptops for each user with a minimum involvement and time spent? I would appreciate your feedback and any concrete examples.

Peter