We are starting to move from XP to Windows 7. (Finally)

At the same time we just built our first ZEN 11 server (currently we use ZEN 7).

We started looking to creating a Win7 image, but the file was 8 Gig (my boss did not ZEN). That seems really big.

Our PC are Lenovos, and the OS was OEM. We do not have the Win 7 install disks.

Our intention is to create images with the base machine image with no applications.

What is the final image size for Windows 7 other people have been able to achieve?