A case is one of the few items that you can buy early and not have it change next week. I have seen the case go for a low of I think 79.99 (last year at Frys) to $125 or so. I would think anything under $100 is a good price.
I agree with Dragon, it is a nice case, but a real dust magnet. No problems with cooling at all and very pretty in the dark. Take time with your wireing to get it out of the way, with the PSU on the bottom it takes a little more effort to keep the wires from hanging across the window.