Interactive led Table

I have been looking at these table kits from evil mad scientist

http://evilmadscience.com/majors/46-tables

I thought about ordering one, but considering the size the project - I think the ability to program it and change the behavior would be awesome. Im sure an arduino could do something similar, what are your thoughts? I need some design ideas

Build your own; It'll be a lot more fun and you'll learn a lot.

Design Ideas? Start by copying their table

Im not sure what to use to activate it, something like a pir sensor but limited sensing to a few feet of distance