imaging for Window 7

I have many workstations come with Window 7 OEM, need to install application and do the imaging before deploying to each of them.

1. Any screens /steps to do the imaging on Window 7 after installing the standard application on a stanard workstation

2. What kinds of software and steps for deploying the image to each workstations (same model)

3. As the workstation come with Window 7 OEM, will it ask for Window key in case clone the image to other workstation of the same model ?

Thanks