Looks like a very nice rig.
One case that i personally think looks awesome is the Cooler Master CM690 II Advanced case. Lots of space to work inside and lots of places to install fans. As for the CPU cooler the H50 is pretty good from what i hear, but as erocker said, a nice air cooler would do some good. I have a Megahalems cooler and it's great and i would definitely recommend it for that CPU, you'll get some nice clocks out of it.