I would like to view my macbook screen on my imac computer. I am aware of the built in screen sharing and remote management features under system preferences. This works well, however I would like to view it "full screen" instead of windowed into a box.

Is there any way to make it go fullscreen on Snow Leopard? - I can't drag the window to expand it any further.

I want to do this as a one off so I am not interested in buying any software. I think the newer OSX may allow full screen mode but again this is a one off requirement and I don't want to be upgrading just at the moment.

Alternatively is there any other ways to use my imac screen to view my macbook - either physical connection or free software (over local network not internet)?