I have never really played with an arduino before and I am not even sure if it is the best solution that I have available. Basically my friends and I are toy collectors and we are trying to find a good alternative to lighting our display cases than buying those LED rope lights. I personally would like a little more control over the LEDs, such as using multicolor LEDs and being able to switch colors on a timed basis or just a button. I already have a 3-color string of 7 LEDs that I took from an old Saitek keyboard.
A friend managed to nip a really nice motion sensing controller and LED strings from a LEGO display he had at work. I would like to either reproduce that circuit or use an arduino to replace it. What I really need is someone to point me to an existing project another user has done or just a page for newbs to learn how to make one using an arduino. Here are the pics of the LEGO LED controller: