http://www.newegg.com/Product/Product.a ... 11-139-008
Love this case, it's what I'm using for my current main rig, had it for about 3 years. Great case, has the ability to turn the LED lights off, USB 3.0, ect. The only thing this case really doesn't have that the 500r has is a fan controller dial.
These cases usually run up to about $99, I think I got mine for $89 back when it was fairly new and never regretted it.