Imagining across a network

Hey guys.

So here is my scenario.

I have 9 machines. One of which will have windows 7 on. I want to make it so that with next to no effort I can click a button or run a process which will make all the machines in that room have the same image as the master.

However! I've never done networking or anything along these lines. I don't know what I need and I cannot find a guide which will progressively walk me step by step through it.

Any help?