Automatically setting iChat icon

Hey, I pretty much brand new to applescripting and all this, so thanks for any help you guys can offer. This is basically what I am trying to achieve:

Take a picture with the iSight camera, save that picture into a folder, set the picture as my desktop background AND my iChat icon. Through automator I have the first part working great, up to the iChat part. It takes the picture, saves it, and sets it as the background. I’m guessing applescript IS the easiest way to get this last step?

Thanks!