Not trash talking your idea, so please don't take it that way. But the only thing I would take away from that is that you can use those lights in a PC, but in some cases, like this one, you probably shouldn't.
Actually, I've used some of those LED strips from Wal-Mar in people's PC's when they wanted lights. They do work great if they are applied in an aesthetically pleasing way. If the case has a side window like Spart mentioned, the 8" and 10" lights look VERY cool when use din conjunction with Water Cooling. I wish now I'd of thought to take pictures of the last computer I did using those. But it would have been shitty cell pics cause at the time, my daughter had my digital cam at college.