I've got an idea for a case design that would incorporate a spinning ring of metal. Imagine a 14 inch coin spinning on edge; something like that. I want it to spin fast enough that an led on the edge of the ring would look like a streak of light. I realize that this will take a fairly powerful motor, but I haven't seen any articles about using a motor that size. I was thinking maybe I could use an electric drill motor or something, but I have no idea how to go about powering or controlling something like that. I did , but couldn't find anything. Same with Google. Any ideas, suggestions or links to applicable articles would be much appreciated. I do realize the safety hazard involved with having that much metal spinning that fast, so the whole thing will be shrouded to protect the fingers. Also, I was planning to power the motor seperately from the computer, either by seperate power source or a second psu if applicable. Thanks!