The cooling system is entirely about paranoia, I don't really need it and I'll probably change my mind about it. I have an AMD Phenom Quad Core that came with a good fan, and I bought the most powerful case fan they had at the shop. I forget what brand it is, but it's called the Tornado and it's loud as shit and blows out air so fast that I could turn my computer around and use it to cool the room.
I'll definitely be looking into that case (or rack, rather), $180 isn't bad. The only problem is that I'd have to make a screen to lay over it, lest the cat start pawing at the computer's innards and force me to murder him.