I know its sligthly out of your price range, but i recently bought an antec 302 case, http://www.newegg.ca/Product/Product.aspx?Item=N82E16811129180, i found it for 59.99 at a few other places.
i really like it, 2 usb3 ports and it flows a lot of air freely, so i imagine it would be good for...