Setup Multiple Computers

I work in an office where I have to set up a lot of macintosh computers (i'm a coop student on a 4 month term).

Usually I have to put in the Leopard CD and boot from it (if the computer I'm working on is not new, I have to erase everything using Disk utility which takes a lot of time as well) .

After that I have to use Bootcamp to partition it and then install Windows.

I want to be able to take an image of the Mac OS (Leopard or Lion) and an image of the Windows partition. That way I can decrease the setup time. I can first setup with the Mac OS image and then use the Windows image to partition the hard drive AND install the Windows OS.

Can someone help me with this process or recommend another way for me to go about setting up multiple computers with disk partitions?