I'd say the
ColdForge AA-15. It's all aluminum, 6 120mm fans(4 in front 2 in back), it's WTX form factor, it has room for 2 PSU's mounted in it(you can get it with 2 if you want) and it's very very roomy. Right now it's still in it's prototype stages but should be out soon. Oh yeah, you can get it anodized in several different standard colors or for a little extra, get a custom color.
You can find out more about it here
Faraday Cases goto the specs page for info and layouts, there's also a link there to see some prototype pics.
Here's another pic too, I'll see if I can find some more.
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Found some more.
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Keep in mind, these are pics of the prototype.