Aurdino Snake on LED matrix

Hello everyone.

I would like to have your suggestion on where to start building this project. I would like to use a aurdio board either the mega or the Duemilanove and a basic 8x8 LED matrix. But when the game will work i would like to expand the LED matrix in to a bigger one , as much as possible. Is there an easy way to make this work and expand the display without rebuilding the whole thing?

Thanks for the help.